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Mr. Sanchez’s class sold 51 snickers and Mr. Kelly’s class sold 31 bottles of fruit juice.
Step-by-step explanation:
Step 1:
Assume x is the number of snickers sold and y is the number of fruit juices sold. It is given that both the classes sold 82 items in total. so
, take this as equation 1.
It is also given they both earned $115.56 out of which snickers sold for $1.50 each and fruit juice sold for $1.26 each. So,
, take this as equation 2.
Step 2:
Now we solve these equations.
Equation 1 can also be, , take this as equation 3.
Substitute equation 3 in 2,
Taking the known values to the right and keeping the unknown x values on the right, we get
Substitute this is equation 1,
So Mr. Sanchez’s class sold 51 snickers and Mr. Kelly’s class sold 31 bottles of fruit juice.