Answer:
x = 7
Step-by-step explanation: 6 25 13 55
since these are similiar triangles the sides of one triangle are equal to the other triangle by the same ratio
The ratio of 90/27 is the same as the (9x-13)/15 ratio
(9x-13)/15 = 90/27
9x - 13 = 15 × 90/27
9x - 13 = 15 × 3 1/3
9x - 13 = 50
9x = 63
x = 7
