Answer:
10 weeks
Explanation:
Total difference in money = $150 - $0
= $150
Difference per week = $25 - $10
= $15
divide 150 by 15 (150/15)
= 10
First equation:
y=10x+150
y=25x
10x+150=25x
15x=150
x=10
so, 10 weeks
EDIT:
how many dollars dey save? dunno
jkkkkk
For John
150+10(10)=
150+100=
250
For Erin
They both equal
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