7 lb will cover an area of 1 square foot, while 315 lb will cover an area of 45 square feet.
From given question,
252 lb = 36 ft² ..........(1)
The number of pound for an area of 1 square foot is calculated as follows:
x = 1 ft² .......(2)
The area and the amount of gravel are illustrations of proportions.
From (1) and (2) we get an equation,
⇒ x × 36 = 252 × 1
⇒ x = 252/36
⇒ x = 7 lb
We need to find the area that could be covered with 315 lb of gravel
The area to be covered with 315 lb gravel is calculated as follows:
315 lb = y ............(3)
From (1) and (3) we get an equation,
⇒ y × 252 = 36 × 315
⇒ y = 45 ft²
Therefore, 7 lb will cover an area of 1 square foot, while 315 lb will cover an area of 45 square feet.
Learn more about the proportions here:
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Answer:
210.0
Step-by-step explanation:
you are rounding to the tens place so you look at the number before it is greater than 5 so you round up getting your answer of 210.0
Answer:
the new cost is 83
Step-by-step explanation:
58 plus 25 is 83
Answer:
176
Step-by-step explanation:
88% = 88/100
88 × 2 = 176
176/200
F = 30
g = 15
Yeah, hope this helps, etc.
