Answer:
D
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
=
, substitute values
=
( cross- multiply )
x² = 39 ( take the square root of both sides )
x =
→ D
Step-by-step explanation:
ten students.
4(10)+95=135
6(10)+75=135
4x+95=6x+75
-75+4x+95=6x+75-75
4x+20=6x
-4x+4x+20=6x-4x
20=2x
(20=2x)/2
x=10
Answer: x=15
Step-by-step explanation: