Answer:The family will use 792 gallons of water in the new washing machine
Step-by-step explanation:
1440 X 0.55=792
100-45=55
Answer:
15
Step-by-step explanation:
Answer:
The population density is 618.93 per square mile.
Step-by-step explanation:
It is given that,
No. of people, N = 70,000
The radius of a city's town hall, r = 6 miles
We need to find the population density. It can be calculated by the formula i.e. number of people divided by area of land such that,

So, the population density is 618.93 per square mile.
Step-by-step explanation:


Answer:
Step-by-step explanation:
Mean = ∑x/ N
91 = ∑x / 150
∑x = 150 * 91 = 13650
x= 6825 and y = 6825