Question

Find RS

QR = 11
RS = 3x
the one of the bottom that is the same length as the top is 7x-1

Answer 1

RS = 9

X = 3

Explanation:

Because QS = QR + RS

QR = 11

RS = 3x

QS = 7x -1

So ...

11 + 3x = 7x - 1

+1

12 + 3x = 7x

-3x

12 = 4x

/ 4

x = 3

3(3) = 9

RS is 9