Answer:
No
Step-by-step explanation:
You only distribute the 3 to the x but not to 1 1/2. In order for the two equations to be the same, you have to distribute 3 to both the x and 1 1/2. Then the answer will look like this : 3x + 4 1/2 or 3x + 9/2
The original expression 3(x + 1 1/2) is not equivalent to 3x + 1 1/2; rather,it simplifies to 3x + 4.5 after distribution and simplification.
Step 1: Distribute the Number Outside the Parentheses:
To determine equivalence, distribute the 3 to both terms inside the parentheses: 3(x) + 3(1 1/2).
Step 2: Simplify Inside the Parentheses:
Multiply 3 by x: 3x.
Multiply 3 by 1 1/2: 3 × 1 + 3 × 1/2
= 3 + 1.5
= 4.5.
Step 3: Combine the Terms:
The distributed expression simplifies to 3x + 4.5.
Step 4: Evaluate the Expression in Question:
The expression provided is 3(x + 1 1/2).
The equivalent expression, as derived, is 3x + 4.5.
Step 5: Compare the Expressions:
The expression 3(x + 1 1/2) simplifies to 3x + 4.5, not 3x + 1 1/2.
Therefore, the original expression 3(x + 1 1/2) is not equivalent to 3x + 1 1/2; rather,it simplifies to 3x + 4.5 after distribution and simplification.
A man is parasailing above a lake at an angle of elevation of 32° from a boat. If 129.5 meters of line connects the boat to the parasail, how many meters above the lake is the man to the nearest tenth of a meter? A) 68.6 m B) 80.9 m C) 109.8 m D) 152.7 m
Answer:
The correct answer is option A) 68.6 m
Step-by-step explanation:
Given:
The angle of elevation from the boat = 32 degrees
Length of the cable that connects the boat and the man = 129.5 meters
To Find:
How many meters above the lake is the man to the nearest tenth of a meter = ?
Solution:
Let the height of the man from the Lake be H.
then H can be found using the sine formula of the right tringle
where
[tex]sin( angle) = \frac{opposite}{hypotenuse}[/tex]
In the figure below
the hypotenuse is the cable length, H is the opposite side
and angle is the angle of elevation:
The substituting the values
[tex]sin(32^{\circ}) = \frac{H}{129.5}[/tex]
[tex]H = 129.5 \times sin(32)[/tex]
[tex]H = 0.5299 \times 129.5\\[/tex]
H = 68.624
H= 68.6
Answer:
68.6m
Step-by-step explanation:
Can anyone help with 20-22?
Answer:
zx would equal 19 as well
wt=4.5
wy=19
Step-by-step explanation:
this is easy speacily since i am in 8th grade lol
A poster is shown below: What are the dimensions of the poster is enlarged by a factor of 5/2?
7.5 ft by 30 ft
15 ft by 60 ft
1.5 ft by 6 ft
15 ft by 6 ft
15 ft by 6 ft is the aswerk
15 ft by 6 ft. is the answer
A carpenter cut out a small trapezoid as a wooden support for the front step. it has an altitude of 4 inches. One base of the trapezoid measure 6 inches and the other base measure 12 inches. What is the area of this support
Area of wooden support is 36 square inches
Solution:
Given that, carpenter cut out a small trapezoid as a wooden support for the front step
The area of trapezoid is given as:
[tex]area = \frac{a+b}{2} \times h[/tex]
Where, "h" is the height
"a" and 'b" are the length of base
Here given that,
Height = h = 4 inches
a = 6 inches
b = 12 inches
Substituting the values we get,
[tex]area = \frac{6+12}{2} \times 4\\\\area = 18 \times 2\\\\area = 36[/tex]
Thus area of wooden support is 36 square inches
Rahmi bought 1 pair of jeans and 2 T-shirts. How much did rahmi spend? Write equations to solve. Use a letter to represent the unknown quantity
1x + 2y = (The answer/money spent)
The total cost that Rahmi spent can be represented by an equation c = j + 2t, with 'c' representing the total cost, 'j' the price of jeans, and 't' the price of a T-shirt. Actual costs can't be determined without specific prices.
Explanation:To figure out how much Rahmi spent, let's set up an equation with the unknown quantities. Let's assume the cost of one pair of jeans is represented by 'j' and the cost of one T-shirt is represented by 't'. Since Rahmi bought 1 pair of jeans and 2 T-shirts, the total cost, 'c', can be represented as:
c = j + 2t
Unfortunately, without specific prices for the jeans and the T-shirts, we cannot calculate the exact total cost. However, this equation will help Rahmi to determine the cost once the prices are known.
cynthia invests some money in a bank which pays 5% compound interest per year. She wants it to be worth over £8000 at the end of 3 years. what is the smallest amount, to the nearest pound she can invest
Answer:
The smallest amount is [tex]\£6,911[/tex]
Step-by-step explanation:
we know that
The compound interest formula is equal to
[tex]A=P(1+\frac{r}{n})^{nt}[/tex]
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
[tex]t=3\ years\\ A=\£8,000\\ r=5\%=5/100=0.05\\n=1[/tex]
substitute in the formula above
[tex]8,000=P(1+\frac{0.05}{1})^{1*3}[/tex]
solve for P
[tex]8,000=P(1.05)^{3}[/tex]
[tex]P=8,000/(1.05)^{3}[/tex]
[tex]P=\£6,910.70[/tex]
Round to the nearest pound she can invest
The smallest amount is [tex]\£6,911[/tex]
1 Round the number 5.014937 to the nearest hundredth.
PLEASE HELP ASAP! I am so confused! See attachment above
Answer:
(e) =1/2x^3y^4 (f)=y/3x^2
54% of students in your class have move at least one time write this percent as a decimal
Answer:
n*54/100
Step-by-step explanation:
it depend on your class students number. if your class number is n, n*54/100 is your answer and it must be a natural number so u must rond it. for example if n was 20 so 20*54/100 = 10.8 that must rond it to number 10. 10 is the answer.
54% as a decimal is 0.54. This is found by converting the percent (per hundred) to the fraction 54/100, and then dividing the numerator by the denominator.
To write 54% as a decimal, you need to convert the percent into a fraction and then to a decimal. The word 'percent' means 'per hundred,' so 54% can be written as 54/100. To convert this fraction to a decimal, you divide the numerator by the denominator.
Here's the conversion step by step:
Write 54% as a fraction: 54/100.Divide 54 by 100: 54 ÷ 100 = 0.54.Therefore, 54% as a decimal is 0.54%.. This means that 54% of the students in the class have moved at least one time, which is equivalent to 0.54 when expressed as a
How much money will Alondra make if she invests $900 in an account that pays 8.2% interest compounded annually?
Answer:
[tex]\$973.80[/tex]
Step-by-step explanation:
The complete question is
How much money will Alondra make if she invests $900 in an account that pays 8.2% interest compounded annually for one year?
we know that
The compound interest formula is equal to
[tex]A=P(1+\frac{r}{n})^{nt}[/tex]
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
[tex]t=1\ year\\ P=\$900\\ r=8.2\%=8.2/100=0.082\\n=1[/tex]
substitute in the formula above
[tex]A=900(1+\frac{0.082}{1})^{1*1}[/tex]
[tex]A=900(1.082)^{1}[/tex]
[tex]A=\$973.80[/tex]
Which two ratios form a proportion? A) 3 : 4 and 6 : 12 B) 3 : 4 and 9 : 15 C) 3 : 4 and 12 : 18 D) 3 : 4 and 15 : 20
Answer:
d forms a proportion
Step-by-step explanation:
3x5=15,4×5=20
so they both increase protionally
therefore they are protional
The ratios that form a proportion out of the given options are: D. 3:4 and 15:20.
What is a Proportion?A proportion, in mathematics, can be defined as when two ratios are set equal to each other.
The ratios in option D is proportional, because:
3:4 = 15:20
3/4 = (3 × 5)/(4 × 5)
3/4 = 3/4
Therefore, the ratios that form a proportion out of the given options are: D. 3:4 and 15:20.
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Which is an equivalent equation solved for t?
FIL
The equation f = v + at represents the final velocity of an
object, f, with an initial velocity, V, and an acceleration rate,
a, over time, t.
Ot=f-v
o t=F-a
II
Ot= a(f-v)
Ot= vif- a)
Answer:
Step-by-step explanation:
f = v + at....solving for t
f = v + at....subtract v from both sides
f - v = at....divide both sides by a
(f - v) / a = t or could also be : t = f/a - v/a <==
The equivalent equation for the given expression f = v + at is (f - v) / a = t. The correct option is C.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
The equation in mathematics is the relationship between the variables and the number and establishes the relationship between the two or more variables.
The given expression is f = v + at, where, the final velocity of an object, f, with an initial velocity, V, and an acceleration rate, a, over time, t.
The given expression for ' t ' is calculated as:-
f = v + at....solving for t
f = v + at....subtract v from both sides
f - v = at....divide both sides by a
(f - v) / a = t
The above expression can also be written as given below:-
t = f/a - v/a <==
Hence, the expression f = v + at for t will be equal to (f - v) / a = t. Then the correct option is C.
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is 11/128 equal to terminating decimal or a repeating decimal
Answer:terminating
Step-by-step explanation:
Answer:11.128
Step-by-step explanation:
The homecoming dance committee plans to conduct a survey to determine
the student body's opinion of a theme for the dance. Which sampling method
would be most likely to resuít in self-selection bias?
Answer:
Biased; conveince sample response.
Explanation:
THE HOMEROOM might have the sam intrests for the theme
The sampling method most likely to result in self-selection bias is the voluntary response sample. It involves individuals choosing to respond to the survey and may result in a biased sample as those who participate may not represent the overall opinion of the student body.
Explanation:In the context of the homecoming dance committee's survey, the method that is most likely to result in self-selection bias is the voluntary response sample. This sampling method involves allowing individuals to choose to respond to the survey on their own. The bias comes from the fact that those who choose to respond may not be representative of the entire student body due to differences in interest or motivation related to the theme of the dance. For example, students with strong opinions on the theme or are more involved in the dance may be more likely to respond, leading to a self-selected and therefore potentially biased sample.
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find each product with work (3g + 2)(3g–2)
Answer:
See explanation!
Step-by-step explanation:
Due to the way the question is expressed we will assume that it means to find the product of this expression (thus simplify or factor our the equation).
So let us solve as following:
[tex](3g+2)(3g-2)=0\\\\(3g)(3g)+(3g)(-2)+(2)(3g)+(2)(-2)=0\\\\9g^2-6g+6g-4=0\\\\9g^2-4=0\\9g^2=4\\\\g^2=\frac{4}{9}\\ \\g=(+/-)\sqrt{\frac{4}{9} } \\\\g=(+/-)\frac{2}{3}[/tex]
So we have factored our the expression and solve for the values of [tex]g[/tex] which since its squared, the solution can be either positive or negative. Thus
[tex]g=\frac{2}{3}\\[/tex] and [tex]g=-\frac{2}{3}[/tex]
brownies sell for $7.50 and cookies sell for $ .40.If Brady wants 3 brownies and 2 cookies . He brought $ 3. Does Brady have enough money to the treats.
Answer:
No he doesnt have enough
Step-by-step explanation:
15 – 0.5(4x – 2) + 4x = 17
Answer:
[tex]\large\boxed{x=\dfrac{1}{2}=0.5}[/tex]
Step-by-step explanation:
[tex]15-0.5(4x-2)+4x=17\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\15+(-0.5)(4x)+(-0.5)(-2)+4x=17\\\\15-2x+1+4x=17\qquad\text{combine like terms}\\\\(-2x+4x)+(15+1)=17\\\\2x+16=17\qquad\text{subtract 16 from both sides}\\\\2x+16-16=17-16\\\\2x=1\qquad\text{divide both sides by 2}\\\\\dfrac{2x}{2}=\dfrac{1}{2}\\\\x=\dfrac{1}{2}[/tex]
Concha está elaborando vestidos, si ha elaborado 2/3 de 6 vestidos. Cuantas fracciones de vestidos le faltan por elaborar? ¿Cuantos vestidos a helaborado ya?
For this case we have the following statement:
Concha is making dresses, if she has made 2/3 of 6 dresses. How many fractions of dresses does she have left to finish? How many dresses have you already made?
If Concha has made [tex]\frac {2} {3}[/tex] of 6 dresses we have:
[tex]\frac {2} {3} * 6 = \frac {6 * 2} {3} = \frac {12} {3} = 4[/tex]
So we have to:
[tex]\frac {3} {3} - \frac {2} {3} = \frac {1} {3}\\6 * \frac {1} {3} = 2[/tex]
Thus, Concha must make 2 dresses to complete all 6. This represents[tex]\frac {1} {3}.[/tex]
Answer:
Concha has made 4 dresses and must make 2 to complete the 6 dresses.
Which of the following would be a possible solution to the system of inequalities given below?
Answer:
(0,5)
Step-by-step explanation:
we have
[tex]2x+3y > 12[/tex] ----> inequality A
[tex]x-y\leq 1[/tex] ----> inequality B
we know that
If a ordered pair is a solution of the system of inequalities, then the ordered pair must satisfy both inequalities of the system (makes true both inequalities)
Verify each ordered pair
Substitute the value of x and the value of y of each ordered pair in the inequality A and in the inequality B and then compare the results
case 1) (0,5)
For x=0,y=5
Inequality A
[tex]2(0)+3(5) > 12[/tex]
[tex]15 > 12[/tex] ----> is true
so
The ordered pair satisfy inequality A
Inequality B
[tex]0-5\leq 1[/tex]
[tex]-5\leq 1[/tex] ---> is true
so
The ordered pair satisfy inequality B
therefore
The ordered pair would be a solution of the system
case 2) (5,2)
For x=5,y=2
Inequality A
[tex]2(5)+3(2) > 12[/tex]
[tex]16 > 12[/tex] ----> is true
so
The ordered pair satisfy inequality A
Inequality B
[tex]5-2\leq 1[/tex]
[tex]3\leq 1[/tex] ---> is not true
so
The ordered pair not satisfy inequality B
therefore
The ordered pair is not a solution of the system
case 3) (0,4)
For x=0,y=4
Inequality A
[tex]2(0)+3(4) > 12[/tex]
[tex]12 > 12[/tex] ----> is not true
so
The ordered pair not satisfy inequality A
therefore
The ordered pair is not a solution of the system
case 4) (6,0)
For x=6,y=0
Inequality A
[tex]2(6)+3(0) > 12[/tex]
[tex]12 > 12[/tex] ----> is not true
so
The ordered pair not satisfy inequality A
therefore
The ordered pair is not a solution of the system
The Ortega family made 15/16 pound of confetti for the Annual fiesta celebration in San Antonio they use 1/4 pound to make field eggs how much confetti is left next year
The Ortega family has 11/16 pound of confetti left for next year's fiesta after using 1/4 pound this year.
Explanation:The Ortega family started with 15/16 pound of confetti for the celebration. They used 1/4 pound of confetti for the fiesta eggs. To find out how much confetti they have left, we need to subtract the amount used from the total amount they made.
To subtract these fractions, they need to have the same denominator. The fractions already have the same denominator here, which makes it simpler. So, we subtract 1/4 from 15/16:
Convert 1/4 into 4/16 (so both fractions have the same denominator)Subtract 4/16 from 15/1615/16 minus 4/16 equals 11/16Therefore, the Ortega family has 11/16 pound of confetti left for the next year's celebration.
Y varies inversely with x. When x = 3 then y = 5. Write an equation to represent this relationship.
Answer:
Step-by-step explanation:
y ∞ 1/x
y = k/x
Where k is the constant of proportionality
When x = 3 and y = 5
5 = k/3
Cross multiply
k = 5×3
k = 15
The equation is y = 15/x
The given relationship Y varies inversely with X and when X is equal to 3, Y equals to 5 which leads us to the equation Y = 15/X which illustrates this inverse variation.
Explanation:The given question states that Y varies inversely with X and provides us with a pair of values - X = 3, Y = 5. In mathematics, when one quantity Y varies inversely as another X, it can be represented by the equation Y = k/X where k is the constant of variation. To find k, we will substitute the given X and Y values into the equation leading to 5 = k/3. Simplifying, we find k = 5*3, that is, k equals 15. Therefore, the equation that represents this inverse variation is Y = 15/X.
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A total of $500 was invested, part of it at 7 percent interest and the remainder at 8 percent .If the total yearly interest from both investments amounted to $38 ,how much was invested at 8 percent rate?
Step-by-step explanation:
Given that
Total investment = $ 500
Let $x be invested at 7% and (500-x ) was invested at 8%
∴ The total interest after 1 year =$[tex][\frac{x\times 7\times1}{100} +\frac{(500-x)\times8\times 1}{100}][/tex]
According to problem,
[tex][\frac{x\times 7\times1}{100} +\frac{(500-x)\times8\times 1}{100}][/tex] = 38
⇔7x +4000 - 8x = 38×100
⇔ -x = 3800 - 4000
⇔x = $ 200
Therefore $(500-200)= $300 was invested at 8% rate
Find the mean for the following set of data: 15, 28, 25, 22, 11, 12, 27 a. 26 c. 20 b. 18 d. 21
Answer:
20
Step-by-step explanation:
add all of them together and divide by 7
Answer: 20
Step-by-step explanation: The mean of a data set is equal to the sum of the set of numbers divided by how many numbers are in the set.
So to find the mean of the data set shown here, let's begin by adding the numbers.
15 + 28 + 25 + 22 + 11 + 12 + 27
This will be divided by how many numbers are in the set which is 7.
So we have [tex]\frac{15 + 28 + 25 + 22 + 11 + 12 + 27}{7}[/tex]
Adding the numbers, we get 140.
140 is divided by the number of numbers in the set or 7.
140 divided by 7 is 20.
So the mean of the set of data shown here is 20.
answer me this it isn't very hard 17+4x= 43+x
find x i didnt even find this out but go ahead
Answer: X = 8.67
Step-by-step explanation:
WORTH 50 POINTS AND A BRAINLIEST FOR THE RIGHT ANSWER!
The graph shows f(x) and its transformation g(x) .
Enter the equation for g(x) in the box.
Answer:
g (x) = 2 ^ (x + 2)
Step-by-step explanation:
For this case the transformation of f (x) is given by
g (x) = 2 ^ (x + 2)
To prove it, we must verify that equality is met by replacing the ordered pairs shown in the function g (x)
For (-2,1)
g (-2) = 2 ^ ( -2 + 2)
g(-2)=1
For (-1,2)
g (-1) = 2 ^ ( -1+ 2)
g(-1)=2
For (0,4)
g (0) = 2 ^ ( 0+ 2)
g(0)=4
Solve n: n/8=9
I need help
Answer;
Given that;
n/8=9
Here n is the numerator and 8 is the denominator we know that 8 is divided here so when we take it to the left side we get;
n=9 * 8. (9 multiplied with 8)
n=72
Hence answer only;
n/8=9
n=9 *8
n=72
Hence answer only;
n=72
After solving n/8=9 you will get n = 72.
To solve the equation n/8 = 9 for n, we need to isolate the variable by performing inverse operations.
Step 1: Multiply both sides of the equation by 8 to eliminate the fraction:
8 * (n/8) = 8 * 9
This simplifies to n = 72.
Therefore, the solution to the equation n/8 = 9 is n = 72. When n is divided by 8, the result is 9. This means that 72 is the value that satisfies the equation and makes it true.
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Samples of size and equals 900 are randomly selected from the population of numbers zero through nine produced by a random number generator in the population of numbers is greater than or equal to five is found for each sample. what is the distribution of the sample proportions
A. skewed to the right
B skewed to the left
C. approximately normal
D. not enough information
The option (C) approximately normal is correct if the samples of size and equals 900 are randomly selected from the population.
What are population and sample?It is described as a collection of data with the same entity that is linked to a problem. The sample is a subset of the population, yet it is still a part of it.
We have the samples of size and equals 900 are randomly selected from the population of numbers zero through nine produced by a random number generator as the population of numbers is greater than or equal to five is found for each sample.
As per the data given from the sample size 900 randomly selected.
The distribution will be approximately normal.
Thus, the option (C) approximately normal is correct if the samples of size and equals 900 are randomly selected from the population.
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Burt is thinking about a career in publishing but does not like writing. What
should Burt probably do?
O
A
Plan for a career as a journalist
O
B. Choose a career in a field other than publishing
O
C. Research other careers in the publishing field
O
D. Eliminate all career goals
Burt can research other careers in the publishing field.
Why Burt should research other careers in the publishing field?
As Burt is thinking about a career in publishing he can research other careers in the publishing field. Burt can work on cutting-edge research from top academics. The articles and books Burt publish will help teach new generations of students, and may even revolution the field.
Surely, Burt's discovery will enrich the pool of literature on a given subject. Burt's findings will strengthen the arguments of others while it will refute others. It will help shed light on issues that need resolution and it will also help build theories.
If Burt will publish a lot of research on a specific topic or issue, will gain credibility and become a recognized expert in that particular field. If ever there will be government or non-government organizations who will need consultants along the area focus Burt's research on, will have an edge over others who have not published anything.
The correct answer is option C.
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19=8+y solve for y? pleas ehelp me answer
Answer:
Step-by-step explanation:
8+?=19
19-8=11
Y=11
Final answer:
To solve the equation 19 = 8 + y for y, you subtract 8 from both sides which gives you y = 11.
Explanation:
The equation provided, 19 = 8 + y, is a simple linear equation where you are solving for the variable y. To find the value of y, you need to isolate y on one side of the equation.
Here is the step-by-step process:
Start with the original equation: 19 = 8 + y.
To isolate y, you need to get rid of the 8 on the right side of the equation. You can do this by subtracting 8 from both sides of the equation.
Subtracting 8 from both sides gives us: 19 - 8 = y.
Simplify the left side: 11 = y.
Therefore, y equals 11.
Benjamin’s Nana bought him a shirt that costs $26.00, but was marked down 40%.
If she paid 8% for sales tax, how much did the shirt cost her?
Answer:
$ 16.84
Step-by-step explanation:
First take 40 percent of 26 by doing 26 times .4 which gives you 10.4 and then do 26- 10.4 (because it was marked down) which gives you 15.6 and then you multiply 15.6 by .08 giving you 1.248 and then you add 1.248 + 15.6 to give you 16.84