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Vesnalui [34]
2 years ago
13

There are 5/7 as many barrettes as hair ties in Sasha's hair supplies. There are 5/8 barrettes as hair bands in her supplies. Wh

at is the ratio of the number of barrettes to the total number of hair ties and bands?
Mathematics
2 answers:
motikmotik2 years ago
7 0

Answer:

  1/3

Step-by-step explanation:

We are given ...

  barrettes : hair ties = 5 : 7

  barrettes : hair bands = 5 : 8

Then the combined ratios are ...

  barrettes : hair ties : hair bands = 5 : 7 : 8

For every 5 barrettes, there are 7+8 = 15 hair ties and bands, so their ratio is ...

  barrettes/(hair ties and bands) = 5/15 = 1/3

jolli1 [7]2 years ago
7 0

Answer:\frac{1}{3}

Step-by-step explanation:

Given

There are \frac{5}{7}  as many barrettes as hair ties in Sasha's hair supplies

i.e. \frac{Barrettes}{hair ties}=\frac{5}{7}

Hair ties =Barrettes\frac{7}{5}

Also There \frac{5}{8}barrettes  as hair bands in Sasha's supplies

i.e. \frac{Barrettes}{hair bands}=\frac{5}{8}

Hair Bands=Barrettes\frac{8}{5}

Ratio of the number of Barrettes to the total number of hair ties and bands

\frac{Barrettes}{Hair band +ties}=\frac{Barrettes}{Barrettes\frac{8}{5}+Barrettes\frac{7}{5}}

=\frac{1}{\frac{8}{5}+\frac{7}{5}}=\frac{5}{8+7}

=\frac{5}{15}=\frac{1}{3}

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