Al and Erika went shopping for snacks. They bought bags of pretzels, p, and cans of almonds, a. Al bought 4 bags of pretzels and 2 cans of almonds for $19.30. Erika bought 5 bags of pretzels and 3 cans of almonds for $26.60. Their purchases can be modeled by the system of equations 4p+2a=19.30
5p+3a=26.60

Solve the system of equations for p and a. Show your work.

Explain what each numerical solution represents.

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

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step-by-step explanation:

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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.

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step-by-step explanation: