Question

Maria studied the traffic trends in India. She found that the number of cars on the road increases by 10% each year. If there were 80 million cars in year 1 of her study, how many more cars were on the road in year 3 compared to year 2?a. 8,000,000.
b. 8,800,000.
c. 88,000,000.
d. 96,800,000.

Answer 1

Answer:

b. 8,800,000.

Step-by-step explanation:

In maria study the number of cars on the road increases by 10% each year.

Total number of cars in the first year =80 million cars.

We will add 10% of 80 million to 80 milion to enable us get the number of cars for the second year.

For year 2 we have;

10% of 80,000,000+80,000,000

$\frac{10}{100}*80,000,000+80,000,000$

8,000,000 + 80,000,000

88,000,000

number of cars in year 2 = 88 million

We will add 10% of 88 million to 88 milion to enable us get the number of cars for the third year.

$\frac{10}{100}*88,000,000+88,000,000$

8,800,000+88,000,000

96,800,000

the number of cars on the road in year 3 compared to year 2 will just be the increase which is in BOLD. That is 8,800,000

or simply subtract the number of cars in year 2 from that in year 3;

96,800,000-88,000,000 = 8,800,000

Answer 2

Answer:

it's b

Step-by-step explanation: