Answer:
awnser b
Step-by-step explanation:
Salma received a $70 gift card for a coffee store. She used it in buying some coffee that cost $7.61 per pound. After buying the coffee, she had $39.56 left on her card. How many pounds of coffee did she buy?
Answer:
4 pounds
Step-by-step explanation:
Do 70 - 39.56 = 30.44 To see how much she spent
Do 30.44 / 7.61 = 4 To see how many pounds of coffee she had bought
Answer:
4
Step-by-step explanation:
Amount spent on coffee = 70 - 39.56 = 30.44
One pound costs 7.61, how many will cost 30.44
7.61 : 1 = 30.44 : X
7.61 = 30.44/X
X = 30.44/7.61
X = 4
7h - 5(3h - 8) = -72
Answer:
h = 14
Step-by-step explanation:
7h - 5 (3h - 8) = -72
7h - 15h + 40 = -72
-8h + 40 = -72
-8h = -112
h = 14
Answer:
14
Step-by-step explanation:
7h-5(3h-8)=-72
7h-15h+40=-72
-8h+40=-72
-8h=-72-40
-8h=-112
8h=112
h=112/8
h=14
25 Points!
In the diagram below line FG is // to line HI, and line segments BC and AD intersect a E. The measure of angle GBE=3x+20, and measure angle ECD=x.
Answer:
x = 40
Step-by-step explanation:
Since FG and HI are parallel and BC is a transversal, then
∠ GBE and ∠ GBE are same side interior angles and are supplementary, thus
3x + 20 + x = 180, that is
4x + 20 = 180 ( subtract 20 from both sides )
4x = 160 ( divide both sides by 4 )
x = 40
15 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What is the value of the expression shown below? 3 + (2 + 8)2 ÷ 4 × 1 over 2 to the power of 4
Answer:
The given expression is
[tex]3 + (\frac{(2+8)2}{4} \times(\frac{1}{2} )^4)= \hspace{0.3cm}3 +( \frac{10 \times 2}{4}\times \frac{1}{2^4} ) \hspace{0.3cm} = \hspace{0.2cm} 3 + ( \frac{5}{16})[/tex] = 3.3125
Step-by-step explanation:
The given expression is
[tex]3 + (\frac{(2+8)2}{4} \times(\frac{1}{2} )^4)= \hspace{0.3cm}3 +( \frac{10 \times 2}{4}\times \frac{1}{2^4} ) \hspace{0.3cm} = \hspace{0.2cm} 3 + ( \frac{5}{16})[/tex] = 3.3125
Answer:6 1/8
and i took the same test
How many cans will kyra be able to make from the sheet of metal
Kyra will make 9 cans from the sheet of metal.
Solution:
Height of the can (h) = 5 in
Radius of the can (r) = 6 in
The can is in the shape of a cylinder.
Surface area of the cylinder = [tex]2 \pi r^{2}+2 \pi r h[/tex]
Surface area of the can = [tex]2 \times3.14 \times 6^{2}+2 \times 3.14 \times 6\times 5[/tex]
[tex]$=226.08+ 188.57[/tex]
[tex]=414.65[/tex]
Surface area of the can = 414. 65 in²
Area of sheet of metal = 3750 in²
To find how many cans able to make:
[tex]$\text { Number of cans} =\frac{\text { Area of sheet metal }}{\text { Surface area of the can }}[/tex]
[tex]$=\frac{3750}{414.65}[/tex]
= 9.04
Number of cans = 9
Hence Kyra will make 9 cans from the sheet of metal.
-1/3,-0.2,5/3, 0.4,1.3 in least to greatest
Answer: -0.2, -1/3, 0.4, 1.3, 5/3
Step-by-step explanation:
-1/3 is -.33 and 5/3 is 1.66 and then simply place them in order
Determine the models that could represent a compound interest account that is growing exponentially.
Select all the correct answers,
A(t) = 2,675(1.003)120
A(t) = 4,170(1.04)
A(t) = 3,500(0.997)4t
A(t) = 5,750(1.0024)20
A(t) = 1,500(0.998)127
A(t) = 2,950(0.999)
Answer: [tex]A(t) = 2,675(1.003)^{120}[/tex]
[tex]A(t) = 4,170(1.04)[/tex]
[tex]A(t) = 5,750(1.0024)^{20}[/tex]
Step-by-step explanation:
The exponential growth equation is given by :-
[tex]y=Ab^x[/tex] , where A = initial value , x= time period , b= growth factor.
The growth factor should be greater than 1.
From all the given options , the equations that are exponential :
[tex]A(t) = 2,675(1.003)^{120}[/tex] , here b= 1.003
[tex]A(t) = 4,170(1.04)[/tex] , here b= 1.04
[tex]A(t) = 3,500(0.997)^{4t}[/tex] , here b= 0.997
[tex]A(t) = 5,750(1.0024)^{20}[/tex] , here b= 1.0024
[tex]A(t) = 1,500(0.998)^{127}[/tex] , here b= 0.998
[tex]A(t) = 2,950(0.999)[/tex] , here b= 0.999
From the above exponential equations , only first , second and fourth equation has b>1.
So , the models that could represent a compound interest account that is growing exponentially. are :
[tex]A(t) = 2,675(1.003)^{120}[/tex]
[tex]A(t) = 4,170(1.04)[/tex]
[tex]A(t) = 5,750(1.0024)^{20}[/tex]
During the homecoming football game, Quentin lost 20 yards, gained 7 yards, and gained 24 yards in three successive running plays. What was his total gain or loss?
Answer:
He gained 31 yards minus 24 = which is 11 yards.
Step-by-step explanation:
If we gained 24 yards plus the 7 which is 31
So if he loss 20 yards that will be 11 yards left cause 31-24= 11
There's your answer. Hope this helps!
if the quotient of 890 and 5 is decreased by 88 what is the difference
Answer:
90
Step-by-step explanation:
890÷5=178
178-88=90
Answer:
90
Step-by-step explanation:
890/5=78
178-88=90
90 = difference
1/4 square yards of fabic divided into 8 equally sections. What is the size of each seaction in square yards?
Answer:
The size of each section is[tex]\frac{1}{32}[/tex] square yards
Step-by-step explanation:
Given:
Length of the fabric = 1/4 square yards
To Find:
The size of each section in square yards if divided into 8 equal sections
Solution:
Let the size of each section be x
Then
[tex]x = \frac{\text{length of the fabric}}{8}[/tex]
[tex]x = \frac{\frac{1}{4}}{8}[/tex]
[tex]x = \frac{1}{4} \times \frac {1}{8}[/tex]
[tex]x = \frac{1}{32}[/tex]
Then the length of each section will be [tex]\frac{1}{32}[/tex] square yards
Which could be the other dimension of the second photograph?
Answer:
15 inches
Step-by-step explanation:
Since the rectangles are similar then the ratios of corresponding sides are equal.
let x be the other dimension in the second photograph, then
[tex]\frac{4}{10}[/tex] = [tex]\frac{6}{x}[/tex] ( cross- multiply )
4x = 60 ( divide both sides by 4 )
x = 15
Thus the other dimension in the second photograph is 15 inches.
Which expression is equivalent to 9a1/2b14c3/2?
The given algebraic expression 9a1/2b14c3/2 appears to be a kind of factorization where a, b, c are variables raised to different powers. Unless values for these variables are provided, this expression can't be simplified further.
Explanation:The expression 9a1/2b14c3/2 is considered as a form of factorization in mathematics where a, b, c denote variables, and the numbers 1/2, 14, 3/2 are their respective exponents. In other words, it's a product of the variables 'a', 'b', and 'c' raised to their respective powers. For instance, 'a' is under a square root (as signified by the power of 1/2), 'b' is raised to the power of 14, and 'c' is also under a square root but cubed (a power of 3/2).
Consequently, this expression doesn't seem to have a simpler or equivalent expression because the terms 'a', 'b', and 'c' are likely representing different entities, hence they can't be combined or simplified further. However, should there be values for 'a', 'b', and 'c', it's simply substituted into the expression and calculated accordingly.
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Which system of equations below has exactly one solution?
y=-8x - 6 and y = –8x + 6
y=-8x - 6 and 1/2y = -4x - 3
y=-8x - 6 and y = 8x - 6
y = -8x - 6 and -y = 8x + 6
Answer:
(y = -8x - 6 and y = 8x - 6) will have exactly one solution.
Step-by-step explanation:
1) Check number of solutions for A (using substitution)
y = -8x -6
y = -8x + 6
-8x - 6 = -8x + 6
+8x +8x
0 - 6 = 0 + 6
-6 = 6 (since this is false, it would be no solution)
2) Check number of sultions for B (using substition)
y = -8x - 6
1/2y = -4x -3
y = -8x - 6 (Multiply both sides of second equation by 2 to cancel out fraction on left side)
-8x - 6 = -8x - 6
Since this is the same equation on both sides- when you cancel everything out it will be 0=0, meaning infinite solution
3) Check number of solutions for C (using substition)
y = -8x - 6
y = 8x - 6
-8x - 6 = 8x - 6
+8x +6 = +8x +6
0 = 16x
x=0
The X value for the solution is 0, when we plug in this X value into one of the equations and solve for Y we will be able to get the Y coordinate
y = -8(0) - 6
y = -6
The solution for C will by (0,-6) which is one solution.
4) Check number of solutions for D (using substition)
y = -8x - 6
-y = 8x +6 --> y = -8x -6
muiltiply both sides of second equation by -1 to make the y positive
-8x - 6 = -8x - 6
Since this is the same equation on both sides- when you cancel everything out it will be 0=0, meaning infinite solution
8k - 9 divided by 3 for k = 7/8
Answer:
8k -3 is the answer my boiii
To solve the expression 8k - 9 divided by 3 for k = 7/8, substitute k with 7/8, multiply, subtract 9, and divide by 3 to get the result of -2/3.
Explanation:The student asks to evaluate the expression 8k - 9 divided by 3 for k equals 7/8. Here's how to solve it step-by-step:
First, substitute k with 7/8 into the expression, which results in 8*(7/8) - 9.
Then apply multiplication to the first part: 8 * 7/8, which equals 7.
Next, subtract 9 from 7, yielding -2.
Finally, divide -2 by 3, to get -2/3 as the final result.
Therefore, when k is 7/8, the expression simplifies to -2/3.
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plot points a,b, c and d on a number line so that each statement is true: B < 0, a < c, d > 0, b > c
Answer:
Step-by-step explanation:
24 + 6 = 6(4 + 2)
What is Jimmy's error?
Jimmy did not write the common factor in the correct place.
Jimmy used 6 as the factor, which is not common to 24 and 6.
Jimmy did not apply the correct operations to the expressions.
Jimmy wrote two expressions that are not equivalent.
Answer:
6 times 2 is 12, 6 times 4 is 24, 30 doesn't equal 36
Which mathematical statement is correct?
Answer:
B is the correct option.
Step-by-step explanation:
Place the values from the given options in equations of f(n) and g(n).
Write the answer of each of the following.
For instance, option A gives:
f(6)= 31
g(6) = 24
Option B gives:
f(7)= 63
g(10)= 36
Option C gives:
f(5)= 15
g(8)=30
Option D gives:
f(5)=15
g(5)=21
Thus option B is correct because f(7) is greater than g(10).
Answer:
B. f(7) > g(10)
Step-by-step explanation:
f(7) = 2⁶ - 1 = 63
g(10) = 3×10 + 6 =36
since 63>36 then f(7) > g(10)
:)
The Adams family has 10 children. The ratio of boys to girls in the Adams family is 1:1. How many girls are in the Adams family?
Answer:5
Step-by-step explanation:
In the Adams family with 10 children and a boy to girl ratio of 1:1, there are 5 girls.
Explanation:The question asked is about the number of girls in the Adams family which has a total of 10 children and the ratio of boys to girls is given as 1:1. When a ratio is 1:1, that means there is an equal number of each. So in the case of the Adams family, there are equal numbers of boys and girls.
To find the number of girls, we simply divide the total number of children by 2. Therefore, the number of girls in the Adams family is 10 ÷ 2 = 5. So, there are 5 girls in the Adams family.
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Advertising a music festival, Paul saw a billboard while he was driving on the highway.
What is the best way, if any, to rewrite this sentence?
A.
While he was driving on the highway advertising a music festival, Paul saw a billboard.
B.
Advertising a music festival, Paul saw a billboard driving on the highway.
C.
no change
D.
While he was driving on the highway, Paul saw a billboard advertising a music festival.
The best way to rewrite the sentence is option D: "While he was driving on the highway, Paul saw a billboard advertising a music festival."
The original sentence is a bit awkward in its structure. Let's evaluate the options:
A. "While he was driving on the highway advertising a music festival, Paul saw a billboard."This option is incorrect because it suggests that Paul was the one advertising the music festival while driving, which is not the intended meaning.
B. "Advertising a music festival, Paul saw a billboard driving on the highway."This option is incorrect because it implies that the billboard itself was driving on the highway, which is illogical.
C. "No change"This option maintains the original structure of the sentence, which is awkward and does not convey the intended meaning clearly.
D. "While he was driving on the highway, Paul saw a billboard advertising a music festival."This option correctly places the modifier "advertising a music festival" next to "billboard," clarifying that it was the billboard, not Paul, advertising the music festival.
Where Is The Blue Dot On The Number Line?
Answer:
-2.1
Step-by-step explanation:
each line represents another 0.1, whether adding or subtracting.
after -22. there is one more tick mark, meaning it is -2.1
Answer:-2.1
Step-by-step explanation:
Each middle line is .1 and it is 1 under -2 so -2.1
A recipe calls for 1/3 of a cup of milk for 10 cookies. How many cups of milk are needed to make 60 cookies?
Answer:
2 cups
Step-by-step explanation:
1/3 times 6 is 6/3, which is equal to two
Answer:
6/3 cups or simplified 2 cups
Step-by-step explanation:
you can buy popcorn at the village theater in small, medium, or large sizes. the pop corn can be buttered or plain. if all the choices are equally likely, what is the probability that a customer chooses a medium size with butter
Answer:
Step-by-step explanation:
Close to none because they are all the same price
The probability of a customer choosing a medium size popcorn with butter is 1/6, or about 16.67%.
To find the probability that a customer chooses a medium size popcorn with butter from the Village Theater, we need to consider the total number of possible outcomes and the number of favorable outcomes. Given there are small, medium, and large sizes, and each can be buttered or plain, there are 3 sizes imes 2 types (buttered or plain), which results in 6 total possible outcomes. The event of choosing a medium size with butter is just one of these possible configurations.
Probability of choosing a medium size with butter = Number of favorable outcomes / Total number of possible outcomes = 1 / 6
The chance is 16.67%, which is the decimal 1/6 expressed as a percentage.
for f(x)=2x+1 and g(x)=x^2-7, find (f-g)(x)
(f-g)(x) = [tex]x^{2}[/tex] + 2x + 8
Step-by-step explanation:
Step 1:
Formula for (f-g) (x) = f(x) - g(x)
Step 2:
Substitute values of f(x) and g(x) in the formula and solve
(f-g)(x) = (2x + 1) - ([tex]x^{2} -7[/tex])
(f-g)(x) = 2x + 1 - [tex]x^{2}[/tex] + 7
= 2x + 8 [tex]- x^{2}[/tex]
= [tex]x^{2}[/tex] + 2x + 8
The total amount of money (in cents) of x dimes and (x+6) nickels
Answer:
60 cents
Step-by-step explanation:
10x + 5(x+6)
15x = 30
x = 2
plug this back in the equation
20 + (5 x 8) = 60
what is the value of x?
a.50
b.150
c.30
d.100
Model and solve the problem. 12 x 1/5
Answer:
2 2/5
Step-by-step explanation:
12 x 1/5 = 2 2/5
What is the area of a regular hexagon with a side length of 5in and an apothem of 4.33in?
Answer:
64.95
Hope this helps :-)
10(5g+2h-3)-4(3g-4h+2)
Step-by-step explanation:
[tex]10(5g+2h-3)-4(3g-4h+2) \\ \\ = 50g + 20h - 30 - 12g + 16h - 8 \\ \\ = 50g - 12g + 20h + 16h - 30 - 8 \\ \\ = 38g + 36h - 38[/tex]
Answer:
38(g - 1) + 36h
Step-by-step explanation:
10(5g + 2h - 3) - 4(3g - 4h + 2)
= 50g + 20h - 30 - 12g + 16h - 8
= 38g + 36h - 38
= 38(g - 1) + 36h
the formula v=u+at is used to find speed of an object. find v if u=6,a=2 and t=5
Answer:
v = 16.
Step-by-step explanation:
This is one of the equations of motion when acceleration is constant.
v = 6 + 2*5
= 16.
Answer: v=16
Step-by-step explanation:
v=6+2(5)
v=6+10
v=16
120% of x is equal to 78
Write an equation that shows the relationship of 120%, x, and 78
Answer:
[tex]\frac{120}{100}\times x=78[/tex] or [tex]12x=780[/tex]
Step-by-step explanation:
Given:
120% of x is equal to 78
We need to write an equation that shows the relationship of 120%, x, and 78
Solution:
We can write the 120% of x as:
⇒ 120% of x
Substitute [tex]\frac{120}{100}[/tex] in the place of 120%.
⇒ [tex]\frac{120}{100}\times x[/tex]
So, we write the equation as:
[tex]\frac{120}{100}\times x=78[/tex]
120 and 100 divided by 10.
[tex]\frac{12}{10}x=78[/tex]
Applying cross multiplication rule.
[tex]12x=780[/tex]
Therefore, equation shows the relationship of 120%, x, and 78.
[tex]\frac{120}{100}\times x=78[/tex] or [tex]12x=780[/tex]
Answer:
brainliest plsssssss
Step-by-step explanation:
answer is in the img below...
hope it helps you!!!!