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Look at the picture please answer it.

Look At The Picture Please Answer It class=

Sagot :

Answer:

r = 7

Step-by-step explanation:

These two angles are complementary which means they add to 90. That's how you get a workable equation.

5r + 5 + 8r - 6 = 90       Combine like terms

5r + 8r + 5 - 6 = 90      

13r - 1 = 90                    Add 1 to both sides.

13r = 90 + 1

13r = 91                         Divide by 13

13r/13 = 91/13

r = 7