Answer:
8
Step-by-step explanation:
Answer:
3/2
Step-by-step explanation:
21/5×5/14
105/70
divide by 5
21/14
divide both by 7
3/2
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
Answer:
x = 4
Step-by-step explanation:
12x - 14 = 34
Add 14 to both sides
12x = 48
Divide both sides by 12
x = 4