The Shoes cost $42 Each pack of socks costs $1.50
Martha has $53 to buy shoes and socks. If Martha buys one pair of shoes, what is the greatest number of packs of socks she can buy?

Martha can buy 7 packs of socks.

Step-by-step explanation:

Martha has $53

Shoes = $42

Socks = $1.50 each

First subtract 42 from 53 to figure out how much is left:

⇒ $53 - $42 = $11

then divide the answer by how much each pack of socks cost:

⇒ = 7.33

next, take the whole number of the answer and multiply that by $1.50 to figure how much 7 pack of socks cost:

⇒ 7 socks x $1.50 = $10.50

subtract the answer from $11 to figure out how much remains:

⇒ $11 - $10.5 = $0.50

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.