In Line 2, Madeline subtracted one from -7, she was supposed to add 1. UR WELCOME!!!
I am pretty sure the answer is A.One
A. The number of mugs that fit four to a box
Write a system of equations and solve.
x + y = 10
5x + 10y = 90
Multiply and combine equations
-5x - 5y = -50
5x + 10y = 90
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5y = 40
y = 8
x = 2
There are 2 nickels and 8 dimes in the jar. Hope this helps! :)
