Question

In 2000, about $155 billion was spent by teenagers in the United States. In 2001, the amount spent by teenagers increased by about 11%. About how many billions of dollars did teenagers spend in 2001?

Answer 1

Answer:

The Teenagers spend $172.05 billion dollars in 2001.

Step-by-step explanation:

Given:

Number of billion dollars spent by teenagers in 2000 = $155

Percentage amount increase in 2001 = 11%

We need to find how many billions of dollars did teenagers spend in 2001.

Solution:

First we will find the Number of billion dollar increase in 2001.

Number of billion dollar increase in 2001 can be calculated by Percentage amount increase in 2001 multiplied by Number of billion dollar spent by teenagers in 2000 and then divided by 100.

framing in equation form we get;

Number of billion dollar  increase in 2001 = $\frac{11}{100}\times 155 = \ 17.05$

So no number of billion dollars teenagers spend in 2001 is equal to Number of billion dollars spent by teenagers in 2000 plus Number of billion dollar  increase in 2001 .

framing in equation form we get;

number of billion dollars teenagers spend in 2001 = $\ 155+\ 17.05 = \ 172.05$

Hence The Teenagers spend $172.05 billion dollars in 2001.