Chapter 0.1, Problem 6E

To determine

To explain: To buy half gallon milk for $\$2.49$ , a bag of apples for $\$4.35$ and four cups of yogurt that costs $\$0.89$ each, the total amount $\$12$ is enough.

Answer to Problem 6E

To buy half gallon milk for $\$2.49$ , a bag of apples for $\$4.35$ and four cups of yogurt that costs $\$0.89$ each, $\$12$ is enough.

Explanation of Solution

Given information:

Cost of three food items are provided, half gallon milk for $\$2.49$ , a bag of apples for $\$4.35$ and four cups of yogurt that costs $\$0.89$ each.

Formula used:

Four step plan is used to solve situations with help ofmathematical tools.

First understand the situation. Plan the solution according to it then solve it using mathematical tools and at last verify your solution.

It is provided that the cost of three food items, half gallon milk for $\$2.49$ , a bag of apples for $\$4.35$ and four cups of yogurt that costs $\$0.89$ each.

An exact answer is required as it needs to be compared whether $\$12$ is enough to buy the items or not.

Total cost of food items that is half gallon milk for $\$2.49$ , a bag of apples for $\$4.35$ and four cups of yogurt that costs $\$0.89$ each.

Denote total cost by C,

Therefore,

  $\begin{array}{c}C=2.49+4.35+0.89\times 4\\ =10.4\end{array}$

Now, compare the amount obtained above with $\$12$ . It is obtained that $10.4<12$ .

Since, the total cost is positive number, the answer is verified.

Also, $\$12$ is enough to buy all the food items as total cost is less than amount the person has.

Thus, to buy half gallon milk for $\$2.49$ , a bag of apples for $\$4.35$ and four cups of yogurt that costs $\$0.89$ each, $\$12$ is enough.