Sarah is slicing boards for a project. He needs boards that are 7 1/2 inches long. He cut his first board too long. His percent error was 12%. How long did Malik cut the board? Enter your answer as a mixed number in simplest form

answer is : muchas/tipicas

have a nice day!

~recklesschicken

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

4.5%

step-by-step explanation: