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goldfiish [28.3K]
2 years ago
6

The prices per pound of different types of nuts are shown. write an expression that can be used to find the total cost of 2 poun

ds of peanuts, 3 pounds of cashews, and 1 pound of almonds, all for 20 % off.
Peanuts = $3.95 per pound
Cashews = $4.25 per pound
Almonds = $5.99 per pound

Please help! Thank you
Mathematics
1 answer:
Soloha48 [4]2 years ago
6 0

Answer:

expression for total cost is given by

0.80(3.95x+4.25y+5.99z)

Step-by-step explanation:

Here we need to find the expression for the total cost

Let us find the cost for x pounds of peanut , y pounds of cashews and z pounds of almonds

cost of 1 pound of peanut = $3.95

cost of x pounds of peanut = $3.95x

cost of 1 pound of cashews = $4.25

cost of y pounds of cashews = $4.25y

cost of 1 pounds of almonds = $5.99

cost of z pounds of almonds = $5.99z

total cost = 3.95x+4.25y+5.99z

cost after 20% off = total cost - 20% of total cost

                                         = 80% of total cost  

cost after 20% off =80%(3.95x+4.25y+5.99z)

cost after 20% off =0.80(3.95x+4.25y+5.99z)

now we can plug x= 2 , y= 3 and z=1

so we have

cost after 20% off =0.80(3.95(2)+4.25(3)+5.99(1))  =$ 21.31          


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