Question

Andy has 28 coins made up of quarters and half dollars, and their total value is $11.50. How many quarters does he have ?

Answer 1

So you've seen how i've written two equations to solve for these variables. Can you try it out?

Answer 2

ok

Answer 3

dont take it in a bad way, if you dont learn for yourself then i'm of no help to you.

Answer 4

i know .
28 coins in all: x+y=28
amounting to $11.50 :

Answer 5

0.25x+0.50y=11.50

Answer 6

yep, thats it! now solve them

Answer 7

solve for x

Answer 8

would it be 20 ?

Answer 9

nope

Answer 10

0.25x+0.50(28-x)=11.50

Answer 11

that answer isnt there only 10

Answer 12

and 20

Answer 13

i dont understand what you're trying to say. the number of quarters (when you solve the equation for x) is 10.

Answer 14

okay i get it now sorry

Answer 15

no worries, what you said just confused me lol