The ratio is 13 males and 12 females or 13:12
Lets say Y is the amount they will save.
So Melinda's savings could be described by the equation Y=22+10X, where X is the number of weeks. The same goes to George, but his equation would be Y=10+13X.
To save the same amount, their equations must match:
22+10X = 10+13X
Solving this, one gets
12 = 3x
=> 4=x
So the answer is 4 weeks.
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If each strip is 1/3 of 12 inches than you will need 3 strips to make a foot so it would be 3 x 12 = 36. Macy would need 36 strips
PEMDAS
Parenthesis, Exponents, Multiply, Divide, Add, Subtract
2(8)-2x4+1x5
16-8+5
16-13
3
