promathninja20
21.08.2020 •
Mathematics
Has enough money.
one year of classes at a college costs $15,500. Elena received a grant that will pay
$800 and a
scholărship for $8,500. She wants to get a job to pay 20% of the uncovered costs and borrow the
rest of the money. How much does she need to earn on her job?
56200
Solved
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Ответ:
273.2
Step-by-step explanation:
Surface area of the pyramid=Area of square+4*area of triangle
Surface area of the pyramid=10^2+2*(8.66)*10
Surface area of the pyramid=100+173.2=273.2