Francine uses \dfrac23

3

2



start fraction, 2, divided by, 3, end fraction cup of pineapple juice for every \dfrac13

3

1



start fraction, 1, divided by, 3, end fraction cup of orange juice to make a smoothie.

b

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.