Question

Explain how to solve: Of 90 coins in a piggy bank, 20% are quarters. What is the least possible amount of money in the bank?

Answer 1

what is the smallest amount of money possible?

Answer 2

YES

Answer 3

Let me try again
What is the smallest type of "coinage", the rest of the coins are those

Answer 4

i think they want the amount ....its confusing

Answer 5

It is a guided problem solving problem which mean it gives you clues....brb

Answer 6

You are thinking about it too much
there are quarters, dimes and nickels and ???

Answer 7

How many coins in the bank are quarters?
what is the value of the coins that are quarters?
What is the least possible value of the coins that are not quarters?

Answer 8

90 coins, of those coins 20 / 100 are quarters, 80 / 100 are ???

Answer 9

(90 * 20) / 100 = 9 * 2 /1 = 18 are quarters.... Which mean 90 - 18 are another type of coin

Answer 10

.2 * 90 = 18 Quarters

90 - 18 = 72 coins remaining

Assuming the rest of coins are pennies (we are trying to find least amount of money that could be in bank) we can find the smallest amount possible...

(18 * 0.25) + (72 * .01) = $5.22

Answer 11

OK THANKS :)
KNOW I AM CERTAIN MY ANSWER WAS SOLVED CORRECTLY :)

Answer 12

Another way to work it out would have been with 90 pieces of paper.
I wanted to help and not just give the answer

Answer 13

YOU DID :) THANKS :) its weird because i get the problems that seem hard to my friends but the ones where your like DUHH after you know how to solve them you dont get at all....