Answer:
Fraction: -35/8
Decimal: -4.375
Step-by-step explanation:
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.
Answers:
Input 0 = Output 25
Input 1 = Output 23
Input 4 = Output 17
Input 7 = Output 11
Equations:
25 = 25 - (2*0)
23 = 25 - (2*1)
17 = 25 - (2*4)
11 = 25 - (2*7)
Don’t know if this is right or not, if it isn’t sorry!