Answer:
8. 3.24 kg
9. 6.31 litres/minute.
10a. 15.3 m³
10b. $ 612.
Explanation:
8. Determination of the kilogram of feed eaten by the pig per day.
From the question given,
The pig consumed = 50 lb bags
Duration = 1 week
Consumption per day =..?
Next, we shall convert 50 lb to kg. This can be obtained as follow:
1 lb = 0.454 Kg
Therefore,
50 lb = 50 lb × 0.454 Kg/ 1 lb
50 lb = 22.7 kg
Next, 1 week us equivalent to 7 days.
Thus, the pigs consumed 22.7 kg of feed in 7 days. Therefore, the pigs will consume X kg of feed in 1 day i.e
X kg of feed = 22.7/7
X kg of feed = 3.24 kg
Therefore, the pigs will consume 3.24 kg of feed per day.
9. Determination of the rate in litres/minute.
Rate = 100 gallon/hour
Rate (litres/minute) =?
We'll begin by converting 100 gallon/hour to litre/hour. This can be obtained as follow:
1 gallon/hour = 3.785 litres/hour
Therefore
100 gallon/hour = 100 × 3.785
100 gallon/hour = 378.5 litres/hour
Finally, we shall convert 378.5 litres/hour to litres/minute. This can be obtained as follow:
1 litre/hour = 1/60 litre/minute
Therefore
378.5 litres/hour = 378.5 × 1/60
378.5 litres/hour = 6.31 litres/minute.
Therefore, 100 gallon/hour is equivalent to 6.31 litres/minute.
10a. Determination of the concrete in m³.
Concrete needed = 20 yd³
Concrete needed (in m³) =...?
1 yd³ = 0.765 m³
Therefore,
20 yd³ = 20 yd³ × 0.765 m³/ 1 yd³
20 yd³ = 15.3 m³
Therefore, 20 yd³ is equivalent to 15.3 m³
10b. Determination of the cost spent on the wall. This can be obtained as follow:
1 m³ = $ 40
Therefore,
15.3 m³ = 15.3 m³ × $ 40 / 1 m³
15.3 m³ = $ 612
Therefore, $ 612 will be spent on the wall.
