All categories

3 years ago

Need help with math

Mathematics

2 answers:

11Alexandr11 [23.1K]3 years ago

7 0

The answer is 13 btw.

kherson [118]3 years ago

4 0

So you use the idea of similar triangles. The ratio of the sides for big triangle:little triangle is 20:5 (simplified to 4:1). To find x, you use this ratio - 52/4 = 13 so x=13

You might be interested in

Rewrite the subtraction as addition 3- (-10)

Bumek [7]

<span>Rewrite the subtraction as addition 3- (-10)

= 3 + 10</span>

4 0

3 years ago

If b(x) = -2(x-50), what is the value of b(20)?

Alex777 [14]

Answer:

Step-by-step explanation:

-2(20-50)

-40 + 100 = 60

8 0

2 years ago

Find the perimeter of the figure?

zhannawk [14.2K]

Answer:

Step-by-step explanation:

9+9+9+9=36

8 0

3 years ago

Read 2 more answers

Janet is painting her shed. She buys some gallon-sized paint cans that cost $15 each and 2 quart-sized paint cans that cost $4 e

blondinia [14]

1 gallon cost $15

1 quarts cost $4

1 quarts = 1/4 gallon

15x for number of gallon cans

2 cans at $4 each = $8

15x + 8 = 53

Subtract 8 from both sides:

15x = 53-8

15x = 45

Divide both sides by 15:

x = 45/15

x = 3

She bought 3 gallon cans of paint

Plus she bought 2 quart cans, which is equal to a half gallon.

She bought a total of 3.5 gallons of paint.

7 0

3 years ago

Please explain how you got the answers also please. Thank you :)

Umnica [9.8K]

Answer:

x = -2 —> y = 4

x= 0 —> y = 1

x= 3 —> y = 1/8

Step-by-step explanation:

$y = ( \frac{1}{2} ) ^{x} \\ y = ( \frac{1}{2} ) ^{ - 2} =( \frac{2}{1} ) ^{2} = {2}^{2} = 4$

$y = ( \frac{1}{2} ) ^{x} \\ y = ( \frac{1}{2} ) ^{ 0} =1$

$y = ( \frac{1}{2} ) ^{x} \\ y = ( \frac{1}{2} ) ^{ 3} = \frac{ {1}^{3} }{ {2}^{3} } = \frac{1}{8}$

I hope I helped you^_^

7 0

2 years ago