A car be rented for $55 per week plus .25 per mile. How many miles can driven if you have at most $280 to spend for weekly transportation?

0.25 (280 - 55) = ?

A car rents for $190 per week plus $0.20 per mile. Find the rental cost for three-week trip of 600 miles.

To find out how many miles can be driven if you have at most $280 to spend for weekly transportation, we need to set up an equation based on the given information.

Let's break it down:

The car can be rented for $55 per week. This is a fixed cost that doesn't change with the number of miles driven.

In addition, there is a cost of $0.25 per mile. This cost varies depending on the number of miles driven.

Let's represent the number of miles driven as 'm'. So, the additional cost based on miles driven would be 0.25 * m.

To find the total cost within the budget, we need to add the fixed cost and the additional cost:

Total cost = Fixed cost + Additional cost

Total cost = $55 + (0.25 * m)

The question states that at most $280 can be spent for weekly transportation. So, we can write:

Total cost <= $280

Now, we can substitute the total cost equation into the inequality and solve for 'm':

$55 + (0.25 * m) <= $280

Simplifying the inequality:

0.25 * m <= $280 - $55
0.25 * m <= $225

Divide both sides of the inequality by 0.25:

m <= $225 / 0.25
m <= 900

Therefore, the maximum number of miles that can be driven if you have at most $280 to spend for weekly transportation is 900 miles.