Chapter 8.5, Problem 16PPS

a.

To determine

To write an equation.

Answer to Problem 16PPS

The equation is $h=4md$

Explanation of Solution

Given information:

Average American watches of television in a day = 4 hours

Write an equation to represent average number of hours spent watching television by ‘ m’ household members during a period of ‘ d’ day.

Calculation:

The equation can be obtained as

Let,

‘ h’ is the number of hours watched in a household

‘ m’ is the number of members of the household

And ‘ d’ is the number of days

Therefore,

We multiply ‘ m’ and ‘ d’ with 4 hours because American watches 4 hours of television a day

So, $h=4md$

Hence,

The equation is $h=4md$

b.

To determine

To find the number of hours that the member of your household watch a television in a week.

Answer to Problem 16PPS

The value $h\text{ is 140 hours}$

Explanation of Solution

Given information:

Average American watches of television in a day = 4 hours

Assume that the members of your household watch the same amount of television each day as the average American.

Calculation:

The number of hours that the member of your household watch a television in a week can be obtained as

Since we find out $h=4md$ in previous part

In this question the answer will vary because we assume that the member of your household is 5

Therefore

  $\begin{array}{l}h=4md\\ h=4*5*7\left[\begin{array}{l}\text{since},m=5\text{ we ssume}\\ d=7\text{ days in a week}\end{array}\right]\\ h=140\text{hours}\end{array}$

Hence,

The value $h\text{ is 140 hours}$