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A delivery servive charges $8 as base price for an overnight delivery of a package plus extra charge of $2.50 "PER" pound the package weighs.a. write and equation for the given information- y=_____x+_____b. Find the cost of shipping a 15-pound package.

Respuesta :

Writing an equation

We know that

- $8 is the base price

- $2.50 "PER" pound

The more weight there is the more it will cost. In order to find the cost due to the weight we just have to multiply $2.50 by the number of pounds:

$2.50x

Since it will cost $8 more, then the total cost is $8 added to the cost due to the number of pounds:

y = $2.50x + $8

In order to find the cost of shipping a 15-pound package,

we just replace x = 15 in the equation:

y = $2.50x + $8

y = $2.50 · 15 + $8

y = $37.5 + $8

y = $45.5

Answer: the cost of shipping a 15-pound package is $45.5

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