Question

You are buying balloons for a party. A small balloon costs ​$2. A large balloon costs ​$3. Write an algebraic expression for the cost of x small balloons and y large balloons. Then find the total cost for 11 small balloons and 5 large balloons.

Answer 1

do 11 x 2 and 5 x 3 in $

Answer 2

cost for something=how many you are bying times how much each cost

cost for total of small ballons=x times 2 or 2x

cost of total of big ballons=y times 3 or 3y

total is costsmall+costbig=2x+3y


so
TC=2x+3y

if you have 11 small and 5 big (x=11 and y=5), what is TC?
input
TC=2(11)+3(5)
TC=22+15
TC=37


total cost is $37