Question 991843: maria and tim sold candy bars for a fundraiser.maria sold 7 less than twice the number of candy bars that tim sold. in total ,maria and tim sold 137 candy bars.find the amount of candy bars sold by each.
Answer by 18leunggn2(1)   (Show Source):
You can put this solution on YOUR website! Maria's candy bars can be substituted by x
Therefore, Tim's total number of candies is 2x-7 (twice the amount of x, 7 less)
137 is the total number of candies sold by both, so x+2x-7 is 137.
By gathering like terms, 3x-7 must equal 137
Then, add 7 to both sides, so 3x is 144
To find x, divide both sides by 3
x=48
So, Maria sells 48 candies
Tim sells 2*48-7 candies, which is 89 candies
|
|
|
