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An Internet store charges a base fee plus [tex]$1.50 per pound to ship items. The table shows samples of their shipping rates.

\begin{tabular}{|c|c|}
\hline
\multicolumn{2}{|c|}{Shipping Rates} \\
\hline
\begin{tabular}{c}
Weight of Package \\ (pounds)
\end{tabular} &
\begin{tabular}{c}
Shipping Cost \\ (dollars)
\end{tabular} \\
\hline
2 & 8.00 \\
\hline
5 & 12.50 \\
\hline
7 & 18.50 \\
\hline
9 & \\
\hline
10 & 30.50 \\
\hline
17 & \\
\hline
\end{tabular}

Derek wants to ship items that weigh a total of 7 pounds, and Keisha wants to ship items that weigh a total of 10 pounds. How much more does Keisha pay for shipping than Derek?

A. $[/tex]\[tex]$ 4.50$[/tex]
B. [tex]$\$[/tex] 6.00$

Sagot :

GinnyAnsweridn
To determine how much more Keisha pays for shipping than Derek, we'll follow these steps:

1. Identify Shipping Costs for Derek and Keisha:
- Derek's package weighs 7 pounds. According to the table, the shipping cost for 7 pounds is \[tex]$18.50. - Keisha's package weighs 10 pounds. According to the table, the shipping cost for 10 pounds is \$[/tex]30.50.

2. Calculate the Difference in Cost:
- We need to find the difference between the shipping cost for Keisha's 10-pound package and Derek's 7-pound package.
- Difference = Shipping cost for Keisha - Shipping cost for Derek.
- Difference = \[tex]$30.50 - \$[/tex]18.50 = \[tex]$12.00. Therefore, Keisha pays \$[/tex]12.00 more than Derek for shipping.
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