A cafeteria purchases milk from one of three providers each week, depending on what other items need to be purchased. The probability of shopping at each store and the cost of one gallon of milk are shown in the table below. Probability and Milk Cost by Store Store Probability Milk Cost per Gallon A 30% $3.00 B 10% $3.50 C 60% $2.75 The cafeteria should budget $ on average for one gallon of milk.

Percentage, a comparative figure denoting one hundredth of any quantity. One percent (symbolised as 1%) is equal to one tenth of something; hence, 100 percent denotes the full thing, and 200 percent defines twice the amount that is stated. percentage

How to calculate percentage?

Divide one number by the other and multiply the result by 100 to determine the percentage difference between the two values.

Calculation for the price of one gallon of milk:

Cafeteria purchases 30% of milk from A at cost $3.00 for one gallon.= Calculate 30% of 3.00,

= 3×(30/100)

= 0.9

Cafeteria purchases 10% of milk from B at cost $3.50 for one gallon.

Calculate 10% of 3.50,

= 3.50×(10/100)

= 0.35

And,cafeteria purchases 60% of milk from C at cost $2.75 for one gallon.

Calculate 60% of 2.75,

= 2.75×(60/100)

= 1.65

Average cost for one gallon of milk.

= 0.9 + 0.35 + 1.65

= 2.90

Therefore,the cost for on an average one gallon of milk is $2.90.

To know more about different unit conversion from gallon, here

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