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emmasim [6.3K]
3 years ago
7

Two sisters open saving accounts with $60 each that their grandmother gave them. The first sister adds $20 each month to her acc

ount. Her sister adds $40 every two months to her $60. If the sisters continue to make deposits at the same rate, when will they have the same amount of money?
Mathematics
2 answers:
nevsk [136]3 years ago
7 0

Answer:

Second month with $100 savings each

Step-by-step explanation:

Opening savings= $100 each

Additional savings

Sister 1 deposit = $20/month

Sister 2 deposit= $40 every 2 months.

First month= opening savings+ additional savings

Sister 1= $60+$20= $80

Sister 2=$60+$0= $60

Second month=

Total month savings+ additional deposit

Sister 1=$80+$20=$100

Sister 2=$60+$40=$100

At the end of the second month, the both have $100 each

maw [93]3 years ago
4 0
Month 1
Sister 1; 60/ Sister 2; 60
Month 2
Sister 1; 80/ Sister 2; 60
Month 3
Sister 1; 100/ Sister 2; 100

On month 3 the should both have $100 in their accounts.
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