Simplify the expression.
70j+63
Hope this helps!
Answer:
280 units
Step-by-step explanation:
dont take my wordfor it i most likley might be wrong just wanted to help ;(
Let H represent hardcover
let P represent paperback
H + P = 20
H = P + 10
sub in H into the first eq’n
(P + 10) + P = 20
2P + 10 = 20
2P = 10
P = 5
sub P into eq’n 2
H + (5) = 20
H = 15
therefore there are 5 paperback books and 15 hardcover
Snusbgqknwgwmims sjbsh737372
9 hearts on card 3 and 6 squares on card 3