Answer:
Pamela is 20 years old
Jiris is 10 years old.
Step-by-step explanation:
The very first step is to identify your variables. Let's say that Pamela is 'P' and lets say Jiris is 'J.' The next step is to create an equation. 'The sum of their ages is 30' is something that we can use. So, P + J = 30. The next step is to see that Pamela is two times Jiris' age. So we can say that P = 2J. Now, in order to solve for one variable, we need to do some substitution. We know that P = 2J, so we can plug that into the first equation (P + J = 30). With this change, we now have, 2J + J = 30. With that, you combine like terms and solve for J to get an answer of J = 10. Now we can use that number and plug it into one of our previous equations, like P + J = 30. Now it is going to be P + 10 = 30. Solve for P and get an answer of 20 years old.
whats the simplest form for 56:32
Answer: 7:4
Step-by-step explanation:
To take this ratio to its simplest form, we have to divide by a value divisible by both sides of the ratio.
8 is a divisible value, therefore,
56/8 = 56 ÷ 8 = 7
32 ÷ 8 = 4
Thus, 56:32 in its simplest form= 7:4
I hope this helps.
how to find the area of a circle
Answer:
A=~r
Step-by-step explanation:
Answer:
To find the area of a circle use the formula: A = π * r^2
r is the radius that is given.
Example: Find the area of a 5 in radius circle
A = π * (5)^2
A = 25π
A = 78.54
Hope this helps :)
Find the value of x to the nearest tenth.
For this case we have that, by definition of trigonometric relationships of rectangular triangles, the cosine of an angle is given by the division of the leg adjacent to the angle on the hypotenuse of the triangle. According to the figure we have:
[tex]Cosine (50) = \frac {6} {x}\\x = \frac {6} {cosine (50)}\\x = 9.3343[/tex]
Thus, the value of x is 9.3
Answer:
[tex]x = 9.3[/tex]
A tree casts 30 ft shadow at the time of day when a 2 ft stake casts a 7ft shadow what is the height of the tree
Check the picture below.
Camden‘s grandparents open a savings account for his on his fifth birthday. They deposited money sign five grand in account that had simple interest rate of 6%. Camden leaves his money in the count for 18 years. What formula would you use to solve this problem?
Step-by-step explanation:
The money deposited in the bank = 5000
Rate of interest = 6%
Number of years = 18
By simple interest Formula,
Interest = PNR / 100
Where P is the principal amount = 5000
N = no of years = 18
R =rate of interest = 6
Substituting the values in the equation, we get
Interest = (5000 * 18 * 6) / 100
Interest = 5400
total amount present = principal + interest
= 5000 + 5400 = 10400
4 1/4 - 3 3/4 is you get this you will have 11 points
Answer:Exact Form: 1/2
Step-by-step explanation:
Use a metric prefix to write 3,100 grams in kilograms
Answer:
3.1 kg
Step-by-step explanation:
3100 × 10^-3 = 3.1
Which would all these equal in value on the number line 0366145 A is 0 and 2 is 6 I need the others
A = 0, B = 6, C = 3, D = 6, E = 4, F = 5 and G = 1.
Solution:
Starting line is [tex]\frac{0}{6}=0[/tex].
First line is [tex]\frac{1}{6}[/tex].In the number line, all the denominators are same.
Second line is [tex]\frac{2}{6}[/tex].Third line is [tex]\frac{3}{6}[/tex].Fourth line is [tex]\frac{4}{6}[/tex].Fifth line is [tex]\frac{5}{6}[/tex].Sixth line is [tex]\frac{6}{6}=1[/tex].If we match this to the given number line, we get
A = 0, B = 6, C = 3, D = 6, E = 4, F = 5 and G = 1.
The points (5, 3), (3, -4), (10, 3), and (8, -4) are the vertices of a polygon. What type of polygon is formed by these points?
Answer:
Parallelogram
Explanation:
Since there are four points, this is a quadrilateral.
There is a slope during the points. Therefore it could not be a rectangle nor square. The sides are still parallel though.
The length is not equal too, so it could not be a rhombus.
If you plot these points to the graph and connect them, it would form a parallelogram.
Answer:
a parallelogram
Step-by-step explanation:
When the points are connected to form a convex polygon, that polygon is a parallelogram.
What number is 105% of 752
Answer:
789.6
You can do it on a calculator
105% of 752 is 789.6.
Explanation:To find what number is 105% of 752, we first need to calculate 105% of 752.
105% of 752 can be found by multiplying 752 by 105% (or 1.05).
The calculation is: 752 * 1.05 = 789.6
Therefore, 105% of 752 is 789.6.
What is the order least to greatest -3,0,-1/2,1,-3 1/3,6,5,-1,21/5,4
Answer: -31/3,-3,-1,-1/2,0,1,4,21/5,5,6
A local park is in the shape of a square. A map of the local park is made with the scale 1 inch to 200 feet.
If the park is shown as a square on the map, each side of which is 12 inches long, how long is each side of the square park?
The length of each side is 50 inch/ 600 ft
Step-by-step explanation:
Given,
The perimeter of the square park = 12 inches
1 inch = 200 ft
12 inches = 12×200 ft = 2400 ft
To find each side of the park.
Let, each side be 'a' inches
Formula
The perimeter of a square = 4a
According to the problem,
4a = 2400
or, a = 600 ft
= 50 inch
Answer:
2400 feet
Step-by-step explanation:
1 : 200
12 : X
X = 12 × 200 = 2400 feet
z varies directly with x and inversely with y2.
When x = 2 and y = 5, z = 8.
What is the value of z when x = 4 and y = 9?
Solution:
Given that,
z varies directly with x and inversely with [tex]y^2[/tex]
Which means,
[tex]z \propto \frac{x}{y^2}\\\\z = k \times \frac{x}{y^2}[/tex]
Where, "k" is constant of proportionality
Substitute x = 2 and y = 5, z = 8 in above
[tex]8 = k \times \frac{2}{5^2}\\\\8 = \frac{2k}{25}\\\\k = 25 \times 4\\\\k = 100[/tex]
What is the value of z when x = 4 and y = 9?
Substitute k = 100 , x = 4 and y = 9 in above
[tex]z = 100 \times \frac{4}{9^2}\\\\z = 100 \times \frac{4}{81}\\\\z = 4.938[/tex]
Thus value of z is 4.938
a jeep finishes a journey in 9 hours at a speed of 60 km her hour. by how much speed should its speed be increased do that it may only take 6 hours to finish the journey??
Answer:
90 km / hour.
Step-by-step explanation:
Speed = distance / time
So Distance = speed * time.
The distance is the same in both scenarios so
60 * 9 = s * 6 where s is the required speed.
540 = 6s
s = 540 / 6
s = 90 km / hour.
Answer:
90 km/h
Step-by-step explanation:
If the jeep finished the journey in 9 hours and 60 km/h, then we know that the journey is 9 * 60 kilometers long, or 540 kilometers.
540 kilometers / 6 hours = 90 km/h
7) Find the solutions to the following polynomial: 5x* +5x2 – 10 = 0
Answer:
[tex]x = - 2 \: o r\: 1[/tex]
Step-by-step explanation:
We want to solve the quadratic equation:
[tex]5x + 5{x}^{2} - 10 = 0[/tex]
Rewrite in standard form to get:
[tex]5 {x}^{2} + 5x - 10 = 0[/tex]
Divide through by 5 to get;
[tex]{x}^{2} + x - 2 = 0[/tex]
Factor to get;
[tex](x + 2)(x - 1) = 0[/tex]
Apply zero product property to get:
[tex]x + 2 = 0 \: or \: x - 1 = 0[/tex]
The solutions are:
[tex]x = - 2 \: or \: x = 1[/tex]
how do you rewrite -8x+4+(-3)
Answer:
-8×+1
Step-by-step explanation:
you CLT the 4 + (-3)
Answer:
-8x + 1
Step-by-step explanation:
(Not sure what you wanted it rewritten as. This is the equation in standard form).
Evaluate -4a+8z if a=8 and z=3
Answer:
- 8
Step-by-step explanation:
Given
= 4a + 8z ← substitute a = 8 and z = 3 into the expression
= - 4(8) + 8(3)
= - 32 + 24
= - 8
Answer:
-8
Step-by-step explanation:
a = 8
z = 3
-4(8) + 8(3) = -32 + 24 = -8
2x + 5
rewrite each expression as the product of a constant and a sum of terms
Answer:
= 2(x+[tex]\frac{5}{2}[/tex] )
Step-by-step explanation:
2x + 5
= 2(x+[tex]\frac{5}{2}[/tex] )
When:
2 is the constant
(x+[tex]\frac{5}{2}[/tex] ) is a sum of terms
Hope it will find you well.
The expression 2x + 5 can be written as the product of 1 and the sum 2x + 5. Therefore, it's 1(2x + 5).
Step 1:
Factor out the greatest common factor.
In the expression 2x + 5, there is no common factor other than 1 since both terms do not share any common factors.
Step 2:
Rewrite as the product of a constant and a sum of terms.
We rewrite 2x + 5 as the product of 1 and the sum of 2x and 5: [tex]\(1 \times (2x + 5)\).[/tex]
Step 3:
Perform the multiplication.
Multiplying 1 by the sum (2x + 5) gives us [tex]\(1 \times (2x + 5) = 2x + 5\)[/tex].
Step 4:
Interpret the result.
The expression [tex]\(2x + 5\)[/tex] represents the original expression 2x + 5 as the product of the constant 1 and the sum of terms 2x and 5. This expression is now in the form requested.
The equations X-2y = 1.3x-y=-1. X+ 2y =-1, and 3x+y= 1 are shown on the graph below. Which system of equations has a solution of approximately (0.6,-0.8)?
Answer:
x+2y=-1 3x+y=1
Step-by-step explanation:
look photo
Answer: x + 2y = -1 and 3x + y = 1
Step-by-step explanation:
PLEASE ANSWERRRRRRRRRR
If two charges attract to each other, then which of the following is true?
A. Both charges must be negative.
B. Both charges must be equal in value.
C. Both charges must be positive.
D. Both charges must be different.
Step-by-step explanation:
D. Both charges must be different.
Because, like charges repel each other and different charges attract each other.
what is -8x-8+3(x-2)=-3x+2
Answer:
x=-8
Step-by-step explanation:
-8x - 8 + 3(x-2) = -3x + 2 Multiply the parentheses by 3
-8x - 8 + 3x -6= -3x +2 Collect all like terms and Calculate
-5x - 14= -3x + 2 Move the terms
-5x + 3x = 2 + 14 Collect all the like terms and Calculate the sum
-2x = 16 Divide both of the sides by -2
x = -8
I hope this is what you were looking for and helps you out.
Answer:
[tex]x=-8[/tex]
Step-by-step explanation:
Given Equation:
[tex]-8x-8+3(x-2)=-3x+2[/tex]
Solving for 'x' by taking the terms of 'x' to one side and constants to the other side:
[tex]-8x-8+3(x)-3(2)=-3x+2\\[/tex]
[tex]-8x-8+3x-6=-3x+2[/tex]
Adding the like terms:
[tex]-5x-14=-3x+2[/tex]
Adding '[tex]3x[/tex]' both sides:
[tex]-5x+3x-14=-3x+3x+2[/tex]
[tex]-5x+3x-14=2\\\\-2x-14=2[/tex]
Adding '[tex]14[/tex]' both sides:
[tex]-2x-14+14=2+14\\\\-2x=16\\\\x=\frac{16}{-2}[/tex]
[tex]x=-8[/tex]
Derek sees that a 24 foot flagpole casts a 10 foot shadow. At the same time of day, if a nearby tree casts
25 foot shadow, about how tall is the tree?
Answer:
60 ft.
Step-by-step explanation:
We can solve this problem with a simple proportion:
24 / 10 = h / 25
10h = 24 * 25
600 = 10h
60 ft. = h
The height of the tree would be 60 feet when its shadow 25-foot.
What is the proportion?A mathematical assessment of two numbers is called a proportion. If two sets of provided numbers rise or fall in the same relation, then the ratios are said to be directly proportional to each other.
We have been given that Derek sees that a 24-foot flag pole casts a 10-foot shadow.
Let the height of the tree would be h when its shadow 25-foot.
According to the given question, we can write the proportion as:
24 : 10 = h : 25
⇒ 24 / 10 = h / 25
⇒ 10h = 24 × 25
⇒ 600 = 10h
⇒ 60 = h
⇒ h = 60
Therefore, the height of the tree would be 60 feet when its shadow 25-foot.
Learn more about the proportion here:
brainly.com/question/1504221
#SPJ5
Which expressions are equivalent to 5 x minus 15? Select three options.
5 (x + 15)
5 (x minus 3)
4 x + 3 y minus 15 minus 3 y + x
Negative 7 y minus 6 x minus 8 y + x
Negative 20 minus 3 x + 5 + 8
Answer:
Step-by-step explanation:
The second expression 5 (x minus 3) the third 4 x + 3 y minus 15 minus 3 y + x
and there is no more
Answer:
5(x+3) 5 (x+15) Those are 2 Your welcome.! (:
Step-by-step explanation:
what do you add to 2 1/8 to make 4
Final answer:
To make a total of 4 starting with 2 1/8, you need to add 1 7/8, which is the difference between 4 written as a fraction (32/8) and 2 1/8 (17/8).
Explanation:
To find what you need to add to 2 1/8 to make 4, you follow these steps:
First, you need to write the number 4 as a fraction with the same denominator as 2 1/8. Since 1/8 is the fractional part of 2 1/8, you can write 4 as 32/8 (because 4 × 8 = 32).
Next, you subtract the fraction 2 1/8 from 32/8. The whole number 2 is the same as 16/8 (because 2 × 8 = 16). So 2 1/8 is the same as 17/8 (because 16 + 1 = 17).
Now, subtract 17/8 from 32/8 to get the difference. 32/8 - 17/8 = 15/8.
The fraction 15/8 can also be written as 1 7/8 (because 15 ÷ 8 = 1 with a remainder of 7).
Therefore, you need to add 1 7/8 to 2 1/8 to make 4.
Work out the angle of CDA?
Answer:
32.3°
Step-by-step explanation:
Sqrt(7.5² - 6²) = 4.5
Tan(D) = 6/(24-10-4.5)
= 6/9.5
D = 32.3
Temperature in degrees Fahrenheit can be converted into degrees Celsius using the formula C=5(F-32)/9
Make F the subject of formula
Give your answer in the form aC + b/c where a,b and c are all positive integers.
Answer:
F= (9C+160)/5
Step-by-step explanation:
C=5(F-32)/9
make F the subject of the formula= isolate F
5(F-32)=9C
5F-160=9C
5F=9C+160
F= (9C+160)/5
check: a, b, c are all positive integers (a=9, b=160, c=5)
Answer:
9c+160/5
Step-by-step explanation:
In the figure below, PDW and WTC are right triangles. The measure of WPD is 30°, the measure of WC is 6 units, the measure of WT is 3 units, and the measure of WD is 12 units. Determine the measure of PD .
Answer:
PD = 12[tex]\sqrt{3}[/tex]
Step-by-step explanation:
Using the tangent ratio in right Δ PDW and the exact value
tan30° = [tex]\frac{1}{\sqrt{3} }[/tex], then
tan30° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{WD}{PD}[/tex] = [tex]\frac{12}{PD}[/tex] = [tex]\frac{1}{\sqrt{3} }[/tex] ( cross- multiply )
PD = 12[tex]\sqrt{3}[/tex]
Step-by-step explanation:
Using similarity it can be solved as:
[tex] In\:\triangle PDW\: \& \: \triangle CTW\\\\
\angle PDW \cong \angle CTW.... (each\:90 °) \\\\
\angle PWD \cong \angle CWT... (Vertical\:\angle s) \\\\
\therefore \triangle PDW\: \sim\: \triangle CTW\\
(by \:AA\: criterion \: of\: similarity) \\\\
\therefore \frac{PW}{CW} =\frac{WD}{WT}.. (csst) \\\\
\therefore \frac{PW}{6} =\frac{12}{3}\\\\
\therefore \frac{PW}{6} =4\\\\
\therefore PW=4\times 6\\\\
\huge \red {\boxed {\therefore PW=24}} \\\\
In\:\triangle PDW\:, \angle PWD = 60°\\\\
\therefore PD =\frac {\sqrt 3}{2} \times PW\\\\
\therefore PD =\frac {\sqrt 3}{2} \times 24\\\\
\huge \orange {\boxed {\therefore PD = 12\sqrt 3\: units}} [/tex]
A(n)=3/2(-2)^(n-1). What is the 3rd term in the sequence?
Answer:
6
Step-by-step explanation:
Substitute n for 3
A(n) = 3/2(-2)^(n-1)
A(3) = 3/2(-2)^(3-1)
A(3) = 3/2(-2)²
A(3) = 3/2(4)
A(3) = 12/2
A(3) = 6
Answer:
6 is the right answer i pretty sure
Step-by-step explanation:
3/2(-2)^(n-1)
3/2(-2)^(3-1)
3/2(-2)²
3/2(4)
12/2
which then if we simplify we get
12/2=6
What’s 8 divide by 12.48
Answer:25/39
Step-by-step explanation:
Determine the slope and y-intercept of the line.
y = -69x - 346
Answer:
Step-by-step explanation:
Compare y = mx + b to
y = -69x - 346.
Here the slope, m, equals -69 and the y-intercept, b, equals -346 (Answer C)
Answer:
Trust him (:
Step-by-step explanation: