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A
9
9
9
-pack of felt-tip pens costs
$
9.00
\$9.00
$9.00
. What is the unit price?
\newline
$
\$
$
_____ per pen
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Math Problems
Grade 7
Unit prices
Full solution
Q.
A
9
9
9
-pack of felt-tip pens costs
$
9.00
\$9.00
$9.00
. What is the unit price?
\newline
$
\$
$
_____ per pen
Calculate Price per Pen:
We got
9
9
9
pens for
$
9
\$9
$9
, so to find the price per pen, we divide the total cost by the number of pens.
\newline
$
9
÷
9
pens
=
$
1
per pen
.
\$9 \div 9 \text{ pens} = \$1 \text{ per pen}.
$9
÷
9
pens
=
$1
per pen
.
Verify Total Cost Calculation:
Check the math:
9
9
9
pens times
$
1
\$1
$1
per pen should equal the total cost of
$
9
\$9
$9
.
\newline
9
×
$
1
=
$
9
9 \times \$1 = \$9
9
×
$1
=
$9
.
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