# I need help with a math problem

Anonymous
timer Asked: Nov 6th, 2015
account_balance_wallet \$5

### Question Description

Mary had 40 pencils that included blue and red.  The ratio is .15 to .35.  How many pencils did Mary have that are blue. This questions involves ratios.

Doctor_Ralph
School: Duke University

Thank you for the opportunity to help you with your question!

The ratio of blue pencils to red is .15 : .35

The whole set of pencils will be .15 + .35=0.5

To find the number of blue pencils, we solve the problem as indicated below:

=.15/.5 * 40=0.3 * 40=12 blue pencils.

Please let me know if you need any clarification. I'm always happy to answer your questions.

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Review

Anonymous
Excellent job

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