Step-by-step explanation:
Equations:
Quantity:: d = n + 3
Value::: 10n + 5d = 615 cents
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Modify::
d - n = 3
d + 2n = 123
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Subtract and solve for "n"::
3n = 120
n = 40 (# of nickels)
d = n+3 = 43 (# of dimes)
Volume of right circular cone = 1/3 πr^2h
Answer:
sorry I can only answer b.
3 sec = 36 feet
6 sec = 72 feet
9 sec = 108 feet
Answer:
-60
Step-by-step explanation:
3(-4)(5)= -60