Mom’s car drove 72 miles in 90 minutes. there are 5,280 feet per mile. how fast did she drive in feet per second? a.0.8 feet per secondb.48.9 feet per second c. 0.009 feet per secondd. 70.4 feet per second explain how ?

d. Mom drove at a rate of 70.4 feet per second

Step-by-step explanation:

This is a problem of proportions.

Mom drove 72 miles over a span of 90 minutes

(72 miles) / (90 minutes)

If there are 5,280 feet in a mile, and 60 seconds in a minute, we can solve for her speed in feet per second by multiplying ratios

( 72 miles) / (90 minutes) * (5,280 feet) / (1 mile) * (1 minute) / (60 seconds)

Our numerator is then

(72 miles * 5,280 feet * 1 minute) = 380,160 miles*feet*minute

Our denominator is then

(90 minutes * 1 mile * 60 seconds) = (5,400 minutes*miles*seconds)

Giving us

(380,160 miles*feet*minutes) / (5,400 minutes*miles*seconds)

380,160 / 5,400 = 70.4

Miles and minutes cancel out, leaving us with units

feet / second

So

Mom drove at a rate of 70.4 feet per second

the population of other specie of birds will decline or other specie of birds will find some alternate source of food to survive.

explanation:

according to the competitive exclusion principle, which is also known as gause's law, two specie living in the same niche and feeding on the same resource cannot co-exist stably.

as we have well studied the theory of natural selection which states that only those organisms survive which have better tendency to compete for food and adapt to the environmental conditions.

coming towards the question, what wi ll happen when one species outcompetes the other for the small fish , the other specie will not get enough food and will start to die or decline in population. eventually either other specie needs to find another alternative food source for itself or migrate at some other location where there is less competition otherwise it will just not exist anymore at that niche.

hope it !