Question

A collection of quarters and nickels is worth $14.80.
There are 88 coins in all.

how many of each coin are there?

__quarters
__nickels

Answer 1

First thing I would do is label the unknowns
x = # of quarters
y = # of nickels

Answer 2

ok.

Answer 3

i have done that. now whats next?

Answer 4

it says there is a total of 88 coins

Answer 5

yup.

Answer 6

this means

x + y = 88

Answer 7

any questions so far

Answer 8

no.

Answer 9

now it also says, the total money is 14.80

Answer 10

so you can multiply the number of quarters by 0.25 , and the number of nickels by 0.5

Answer 11

.25x + .05y = 14.40

Answer 12

1 quarter = $0.25
1 nickel = $0.05

Answer 13

now can you solve it, you have two equations in two unknowns

Answer 14

ok. i think im starting to understand.

Answer 15

thanks!

Answer 16

Whats the answer