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?
Accepted Solution
A:
Answer: 1/3Step-by-step explanation:We are given ... barrettes : hair ties = 5 : 7 barrettes : hair bands = 5 : 8Then the combined ratios are ... barrettes : hair ties : hair bands = 5 : 7 : 8For 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