Concrete is made by mixing cement, sand, and
2 answers:
Answer:
60 ft.
Step-by-step explanation
The fraction of cement on the concrete
= 5 / (5+9+13)
= (5/27) * 324
= 5 * 12
= 60 ft.
Answer:
60
Step-by-step explanation:
Sum the parts of the ratio, 5 + 9 + 13 = 27 parts
Divide the amount of concrete by 27 to find the value of one part of the ratio.
324 ÷ 27 = 12 ← value of 1 part of the ratio , thus
5 parts = 5 × 12 = 60 ← cement
9 parts = 9 × 12 = 108 ← sand
13 parts = 13 × 12 = 156 ← gravel
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Answer:86
Step-by-step explanation
140-(16+24+5+9) 140-54 = 86
Your final answer:
