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valentinak56 [21]
3 years ago
14

Alexndra earns $125 from her paper route each month but she spends about $20 each month on personal expenses.To pay for a school

trip that cost $800, about how much months does she need to save money? Explain
Mathematics
2 answers:
Andrei [34K]3 years ago
8 0
It would take Alexandria 8 months to earn the money. 

125-20= 105 monthly earnings after personal expenses 
800/105= 7.6 which rounds to 8.

8x105= 840

dybincka [34]3 years ago
6 0
Since she spends $20 of the $125 she makes a month, she really ends up with $105 a month.

Write an equation using 'm' to represents months. It will be the money earned a month times the number of months, and this will equal how much she needs ($800)

105m=800

To find how many months, divide each side by 105

m equals about 7.62

Since you aren't going to have just .62 of a month, you need to round. Since it is above .5, you round up to 8 months.
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