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. what is the ratio of the number of barrettes to the total number of hair ties and bands?

  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

Step-by-step explanation:

Given

There are  as many barrettes as hair ties in Sasha's hair supplies

i.e.

Hair ties =

Also There barrettes  as hair bands in Sasha's supplies

i.e.

Hair Bands=

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

5x+10 is the correct one

hope this