Question

What is the length of line DE?
A 15
b 10
c 6
d 9

Answer 1

You can use proportions for this.

Answer 2

I tried. I still don't understand.

Answer 3

\[\frac{ 12 }{ 18 } = \frac{ x }{ 15 }\]

Answer 4

Cross multiply. 12 * 15 = 18x

Answer 5

so it would be 15?

Answer 6

180 = 18x
x = 10

Answer 7

wait my teacher helped me with this also and I got 10 but she said the answer was incorrect.

Answer 8

So the answer would be B) 10

Answer 9

No I just got the wrong answer

Answer 10

B is correct