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katrin [286]
3 years ago
6

Maria bought 15 pencils each pencil cost .22 how much did it cost her to buy 15 pencils

Mathematics
2 answers:
Elena L [17]3 years ago
5 0

Answer:

$3.30

Step-by-step explanation:

15 pencils * .22 cents. = 3 dollars and 30 cents !

erma4kov [3.2K]3 years ago
3 0

Answer:

2

Step-by-step explanation:

Of the $24, she has $10 left, therefore, she spent $14 on the 7 pencils.  

You can tell now how much each pencil cost, since 7 goes into 14, 2 times.

The answer is the cost for each pencil= $2.

 

However, in order to represent the problem using equations:

Assign a variable for the cost of each pencil, let x represent the cost

$24 equals 7 pencils, each x dollars worth, and the $10 left over: 24=7x+10.

Solve for x,  

                24-10=7x

14=7x

$2=x

The cost of each pencil is $2.

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