Question

The price of a 7 minute phone call is $1.40 what is the price of a 17 minute phone call

Answer 1

The price for 17 minutes of phone call is;

`\text{ \$3.40}`

Step-by-step explanation:

Given that the price of a 7 minute phone call is 1.40.

`\begin{gathered} 7\text{ minutes }\rightarrow\text{ \$1.40 } \\ \text{divide through by 7;} \\ (7)/(7)\text{ minutes }\rightarrow\text{ }\frac{\text{\$1.40 }}{7} \\ 1\text{ minutes }\rightarrow\text{ \$0.20 } \end{gathered}`

For 17 minutes phone call the price can be calculated as;

`\begin{gathered} 1\text{ minutes }\rightarrow\text{ \$0.20 } \\ \text{ multiply both sides by 17;} \\ 17\text{ minutes }\rightarrow\text{ \$0.20 }*17 \\ 17\text{ minutes }\rightarrow\text{ \$3.40 } \end{gathered}`

Therefore, the price for 17 minutes of phone call is;

`\text{ \$3.40}`