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Four times a number, x, plus five times a number, y, equals 79. Ten times x minus 5 times y equals 5.

1.Four times a number, x, plus five times a number, y, equals 79. Ten times x minus 5 times y equals 5. Find the numbers by setting up a system of linear equations and solving the system using the elimination method.


x = 7, y = 9

x = 6, y = 11

x = 8, y= 10

x = -10, y = 7



2.Kayla has saved $350 in 5 months. Express her rate of savings as a unit rate.


$140 every 2 months

$75 every month

$70 every month

$350 every 5 months

Top Answer

1) We have the equations, 4x + 5y = 79 and 10x - 5y = 5. Divide the second equation by 5. 2x - y = 1. So y = 2x - 1. Plug... View the full answer

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The way to approach this... View the full answer

1.) The second option is the solution of the... View the full answer

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