Mr. Sanchez’s class sold snickers for 1.50 each and Mr. Kelly’s class sold bottles of fruit juice for 1.26 each. Together, the classes sold 82 items and earned $115.56 for their school.

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.

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

ok then what happened.