Ralph bought and 8foot long copper pipe he used 85 investors of the copper pipe how many inches of pipe were left over

Convert the total length of the pipe from feet to inches.

1 foot = 12 inches.

8 feet x 12 inches = 96 total inches.

96 inches - 85 inches = 11 inches are left over.

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.

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