Question

13. The sum of the measures of angle Mand angle Ris 90°.

• The measure of angle Mis (5 x + 10).
• The measure of angle Ris 55°.
What is the value of x?

Answer 1

x=5

Explanation:

If the sum of the measures of angle M and R is 90 degrees, and you know that angle R is 55 degrees, subtract angle R from the total angle. Then, solve for M

90 - 55 = 35

5x + 10 = 35

5x = 25

x = 5