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Chapter 2: Q58. (page 96)

Which is the best estimate for the number of minutes on the calling card advertised below?

A)鈥夆赌夆赌�10minB)鈥夆赌夆赌�20minC)鈥夆赌夆赌�50minD)鈥夆赌�200min

Short Answer

Expert verified

The correct option is D)鈥夆赌�200鈥�min.

Step by step solution

01

Step 1. Determine the total amount and rate.

The total amount is $10 and rate is 5.4cents per minute.

02

Step 2. Write the equation.

Let the maximum number of minutes is represented by x.

The given expression can be written as:

x=10(100)5.4

03

Step 3. Solve for x.

x=10005.4x=185.185

Hence, the maximum number of minutes can be185.185

Therefore, the correct option is D)鈥夆赌�200min.

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