Brad earns $200 a month selling ice cream, and makes an additional $12 for every milkshake he sells. If he made $344 last month, how many milkshakes did he sell?

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Answer 1 · 2016-08-17T17:38:26

#=12#

#(344-200)/12#

#=144/12#

#=12#

Answer 2 · 2016-08-17T21:08:06

12 milkshakes

We can solve this problem using algebra to write and solve an equation.

Define the variable first:

Let the number of milkshakes be #x#.

income from milkshakes:
He makes $12 for each of x milkshakes = #12 xx x = 12x#

He is paid $200 per month for working,

Total income = #12x+200 = 344#

#12x = 344-200 = 144#

#12x = 144#

#x = 12#