Answer:
-4/9
Step-by-step explanation:
Mass of 1 sheet = (160 g/m^2)*(1/8 m^2) = 160/8 g = 20 g
mass of 25 sheets = (25 sheets)*(20 g/sheet) = 25*20 g = 500 g
9 15 *The denominator must be the same. 9 4 36
--- + ---- = --- × --- = ----
10 40 10 4 40
36 15 51 *Then simplify.
--- + --- = ----
40 40 40
51 11 * This the answer
--- = 1 ---
40 40
Answer:
12
Step-by-step explanation:
Answer:
Is there a diagram that could help??
Step-by-step explanation:
