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Aliyah had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?

Answer 1

Julia Adams

suppose, every pencil costs #x#$ seven pencils cost #7x#$

so,

#7x+10=24#

#or,7x=24-10#

#or,7x=14#

#or,x=14/7#

#or,x=2#

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Answer 2

Kennedy Adams

To find the cost of each pencil, we can set up a simple equation. Let's denote the cost of each pencil as ( x ).

Aliyah initially had $24. She spent ( 7x ) on seven pencils, leaving her with ( 24 - 7x ) dollars.

Given that she had $10 remaining after buying the pencils, we can set up the equation:

[ 24 - 7x = 10 ]

Solving for ( x ), we have:

[ 7x = 24 - 10 ] [ 7x = 14 ] [ x = \frac{14}{7} ] [ x = 2 ]

So, each pencil costs $2.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.