If 2 over 7 of a ton of concrete covers 7 over 8 of a wall, how many tons of concrete are required to cover the entire wall?
2 answers:
2/7 of a ton of concrete - 7/8 of a wall
x of a ton of concrete - 1 of a wall (the entire wall)
The proportion:
The answer is b. 16/49 ton.
Answer:
2/7 of a ton of concrete - 7/8 of a wall
x of a ton of concrete - 1 of a wall (the entire wall)
The proportion:
\frac{\frac{2}{7}}{\frac{7}{8}}=\frac{x}{1} \\ \frac{2}{7} \times \frac{8}{7} = x \\ \frac{16}{49}=x
The answer is b. 16/49 ton.
Step-by-step explanation:
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