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Lynn needs a large truck toMove some furniture. She found that the cost C of renting a truck is $20 per day plus $1 per mile mWrite an equation for the cost of one day in terms of the miles drivenGraph the equation for values up to and including 100 milesEstimate the cost of driving 20 miles in one day

Sagot :

We can set the following equation with the information given:

[tex]C=1\cdot m+20[/tex]

Notice that it is a linear equation and its graph is as follows:

which corresponds to option A.

The estimated cost of driving 20 miles in one day is:

[tex]\begin{gathered} C=1\cdot20+20 \\ C=40 \end{gathered}[/tex]

If C=$25, solving the first equation on the board for m we get:

[tex]\begin{gathered} 25=m+20 \\ m=25-20 \\ m=5 \end{gathered}[/tex]

Therefore, the truck was driven 5 miles if the cost for one day is $25.

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