When louisa rented a moving truck, she agreed to pay $28 per day plus $0.42 per mile. if she kept the truck 3 days and the rental charges (without tax) were $153.72, how many miles did louisa drive the truck?
a.
339 miles
b.
340 miles
c.
166 miles
d.
16.6 miles

Option c.

Step-by-step explanation:

Louisa kept the truck for 3 days, so her daily fix charge = $28 × 3

                                                                                            = $84

She paid her rental without tax = $153.72

Her travelling charges are = 153.72 - 84 = $69.72

Her charges per mile = $0.42

She traveled = 69.72 ÷ 0.42 = 166 miles

Louisa drove the truck 166 miles.

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb