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At the car dealership there are 58 cars, 28 cars are white and the rest are blue. Approximately what percentage is blue

a word problem 
help me please 

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Kevin C. | Successful Math Tutor -- Recently retired high school math teacherSuccessful Math Tutor -- Recently retire...
5.0 5.0 (549 lesson ratings) (549)
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There are two approaches:
 
1.  The direct way is to subtract 28 from 58 to determine the number of blue cars, then divide that number by the total number and multiply by 100% to find the percent of blue cars.
 
i.e.  58 - 28 = 30.  30/58 times 100%.
 
2.  The indirect way is to divide 28 by 58 and multiply by 100% to find the % of white cars, and subtract from 100%.
 
I hope this helps.
Carol H. | Experienced Mathematics Tutor w/ Master's Degree in MathExperienced Mathematics Tutor w/ Master'...
4.9 4.9 (276 lesson ratings) (276)
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58 - 28 = 30 blue cars.
30/58 = 51.7% are blue