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Let’s check out your problem:
The supermarket has
30
30
30
aisles.
27
27
27
of the aisles are empty. What percentage of the aisles are empty?
\newline
Write your answer using a percent sign (%).
\newline
_____
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Math Problems
Grade 7
Solve percent equations: word problems
Full solution
Q.
The supermarket has
30
30
30
aisles.
27
27
27
of the aisles are empty. What percentage of the aisles are empty?
\newline
Write your answer using a percent sign (%).
\newline
_____
Identify Aisle Information:
Step
1
1
1
: Identify the total number of aisles and the number of empty aisles.
Set Percentage Equation:
Step
2
2
2
: Set up the equation to find the percentage of empty aisles. Use
x
x
x
for the unknown percentage.
Convert to Decimal:
Step
3
3
3
: Convert the percentage equation to a decimal equation for easier calculation.
Solve for Unknown:
Step
4
4
4
: Solve for
x
x
x
by isolating it on one side of the equation.
Convert to Percentage:
Step
5
5
5
: Convert
0.9
0.9
0.9
to a percentage by multiplying by
100
100
100
.
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