Question

The triangles shown are similar.

What is the value of x?



A.
15

B.
10

C.
9

D.
12


http://static.k12.com/calms_media/media/1299500_1300000/1299525/1/a506825d97824929139025503c02ad0152987659/141091.jpg

Answer 1

@texaschic101

Answer 2

@iGreen

Answer 3

@iGreen help please

Answer 4

Set up a proportion.

\(\dfrac{5}{x} = \dfrac{4}{8}\)

Answer 5

Cross multiply.

4 * x = ? 5 * 8 = ?

Answer 6

so mulitply 5*4?

Answer 7

is it 10?

Answer 8

HI!!

Answer 9

yep, it is 10 (:

Answer 10

YAY

Answer 11

when making a proportion, put your variable in the numerator to save time

Answer 12

\[\frac{x}{5}=\frac{8}{4}\\
f\rac{x}{5}=2\\
x=10\]