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makkiz [27]
3 years ago
9

Modeling with Equations

Mathematics
1 answer:
aleksandrvk [35]3 years ago
3 0

Answer:

Step-by-step explanation:

you

60 +14*number of weeks

sister

120+10*number of weeks

let x be the number of weeks until they have the same amount of money

60+14x = 120+10x ; isolate like terms

14x -10x = 120-60

4x = 60; divide both sides by 4

x= 15 weeks

120+10*15 = 120+ 150 = $270 will be the amount they will have the same

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