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Temka [501]
3 years ago
7

Y=-1/2x-1 y=1/4x-4 please help me with this problem I home school my kids and I am confused

Mathematics
1 answer:
svlad2 [7]3 years ago
8 0
Y=12x-1y=1\4  y=12x 1y =1\4 x-4 y=12x-1y 12x-1y=1\4 y=12x1y1\4  y=12x-1y=\x-4y=1x-y 12x-y  4{12x-y}=4{-/x/-4} y=12x -y  4 12x-4y=4x\x -y=12x-x-y 
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Pls help!! 15 points!
Vesna [10]

When trapezoidal prism undergoes a dilation, the size of the prism changes

The height of the image is 52.2 meters

<h3>How to determine the height of the image?</h3>

The given parameters are:

A1 = 35 m²

A2 = 315 m²

H1 = 5.8 m

To calculate the height of the image, we make use of the following equivalent ratio

A1 : H1 = A2 : H2

So, we have:

35 : 5.8 = 315 : H

Express as fractions

35/5.8 = 315/H

Make H the subject

H = 315 * 5.8/35

Evaluate the product

H = 52.2

Hence, the height of the image is 52.2 meters

Read more about dilation at:

brainly.com/question/3457976

6 0
2 years ago
Read 2 more answers
Find two numbers whose sum is 58 and whose difference is 16 <br> Can anyone help me out
White raven [17]
X, y - the numbers

x+y=58 \\&#10;\underline{x-y=16} \\&#10;x+x+y-y=58+16 \\&#10;2x=74 \\&#10;x=37 \\ \\&#10;x+y=58 \\&#10;37+y=58 \\&#10;y=21

The two numbers are 37 and 21.
7 0
3 years ago
PLEASE ANSWER ASAP WILL GIVE BRAINLEIST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Step2247 [10]

Answer:

r = 16

Step-by-step explanation:

Cross multiply:

4 x 20 = r x 5

Simplifying

4 x 20 = r x 5

Multiply 4 x 20

80 = r x 5

Reorder the terms for easier multiplication:

80 = 5r

Solve

80 = 5r

Solve for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-5r' to each side of the equation.

80 + -5r = 5r + -5r

Combine like terms: 5r + -5r = 0

80 + -5r = 0

Add '-80' to each side of the equation.

80 + -80 + -5r = 0 + -80

Combine like terms: 80 + -80 = 0

0 + -5r = 0 + -80

-5r = 0 + -80

Combine like terms: 0 + -80 = -80

-5r = -80

Divide each side by '-5'.

r = 16

Simplify

r = 16

5 0
3 years ago
Pls solve q no. 7. I need it urgently. Tomorrow is my exam.
FinnZ [79.3K]

Answer:

The area of the square lawn is 784\ m^2

Step-by-step explanation:

Part 7)

Let

x ----> the length side of the square lawn in meters

we know that

The area of the path is equal to

A=(x+2+2)^2-x^2

A=(x+4)^2-x^2 ----> equation A

A=240\ m^2 ----> equation B

so

240=(x+4)^2-x^2

Solve for x

240=(x^2+8x+16)-x^2

240=8x+16

8x=240-16

8x=224

x=28\ m

The area of the square lawn is

A=x^2

substitute the value of x

A=28^2=784\ m^2

3 0
3 years ago
Which set best describes the numbers used on the scale for a standard thermometer?
Gnoma [55]
I believe it’s B sorry if I’m wrong
7 0
3 years ago
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