At an archery competition, archers get 7 points for each arrow that lands in the bull’s-eye and 4 points for each arrow that land in the ring surrounding the bull’s-eye. No points are awarded for arrows that miss both of these areas. During the competition, Kelly had 41 arrows land in either the bull’s-eye or the ring surrounding the bull’s-eye. She scored a total of 206 points. To represent her performance, she wrote the system of linear equations shown below. x + y = 41, 4x +7y = 206. What does the y-variable represent in Kelly’s system of linear equations?

the correct answer is d

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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.

the answer is a.

135 and 80

step-by-step explanation:

four boxes of pizza

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