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Neporo4naja [7]
3 years ago
14

Adrian earns $3600 per month. he spends 1/4 of his income on rent, 2/5 on food, 1/9 on activities, and he saves the rest. how mu

ch does he save each month?
Mathematics
2 answers:
arsen [322]3 years ago
7 0

To add the fractions we must make the denominators = 180.

45/180 + 72/180 + 20/180 = 137/180

Expense Total = (137/180) * 3,600 = $2,740

Savings Total = (180 - 137) / 180

Savings = (43/180) * 3,600

Savings = $860

***********DOUBLE CHECK**********************

1/4=.25     2/5 = .40     1/9 = .111111

.25 + .40 + .111111   = .761111

Expenses = .761111 * 3,600 = 2,740.00

Savings = 3,600 - 2,740.00 = 860.00


murzikaleks [220]3 years ago
4 0

he saves $860 per month

calculate each of his outgoings

rent = \frac{1}{4} × $3600 = \frac{3600}{4} = $900

food = \frac{2}{5} × $3600 = \frac{2(3600)}{5} = $1440

activities = \frac{1}{9} × $3600 = \frac{3600}{9} = $400

savings = $3600 - ( 900 + 1440 + 400 ) = $860


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