Question

if five pencils and three erasers cost 65 cents, and three pencils and two erasers cost 40 cents, what is the cost of one pencil and one eraser?

Answer 1

ok. wait 2 minutes

Answer 2

pencil cost 10 cents,eraser5 cents

Answer 3

can you explain to me how you got it?

Answer 4

yes we do equation
5p+3e=65(multiply on 2 for getting 6e)
3p+2e=40(multimply on 3 to get 6e)

we got 10p+6e=130
and 9p+6e=120
6e=130-10p
9p+130-10p=120
-p=-10
p=10

Answer 5

it is one pencil

Answer 6

but now we only put in one of equations
50+3e=65
3e=15
e=5
it is eraser