SOLUTION: your are purchasing pens and pencils to be sold at the school store. You need a total of 50 boxes of pens and pencils. The pens cost $3 per box and pencils cost $2 per box. let p
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Question 991536: your are purchasing pens and pencils to be sold at the school store. You need a total of 50 boxes of pens and pencils. The pens cost $3 per box and pencils cost $2 per box. let p be the number of boxes of pens you purchase. Write and simplify an expression in terms of p for the total cost of the pens and pencils. find the total cost of the pens and pencils when you purchase 15 boxes of pens Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! .
p=boxes of pens; 50-p=boxes of pencils; T=total cost
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T=$3p+$2(50-p)
T=$3p+$100-$2p
T=$1p+$100 . ANSWER 1: This is the expression.
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For p=15:
T=$1(15)+$100
T=$15+$100
T=$115 ANSWER 2: Total cost with 15 boxes of pens=$115
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CHECK:
15 boxes of pens and (50-15)=35 boxes of pencils; T=$115
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T=$3p+$2(50-p)
$115=$3(15)+$2(35)
$115=$45+$70
$115=$115
