3 years ago

Solve the system of equations:

Mathematics

1 answer:

Molodets [167]3 years ago

5 0

The answer is D.

Y=2x Y=x(2)-3

2=2(1) 2=3(2)-3

2=2 2=6-3

2=2

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Answer: Tiffany 15mph, Maggie 20mph

Step-by-step explanation:

Set up the equation 4((x+5) + x) = 140. x+5 represents how many miles Maggie covered in one hour. x represents how much Tiffany traveled in one hour. 140 is the number of miles in total. 4 is the number of hours in total.

Simplify the equation.

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Tiffany traveled 15mph, while Maggie traveled 15+5=20mph.

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