Respuesta :

clarch19

Answer:

6 7/8 miles per hour

Step-by-step explanation:

2 3/4 ÷ 2/5

change mixed number into improper fraction; 2 3/4 = 11/4

when dividing fractions, multiply by the reciprocal of the second fraction

11/4 ÷ 2/5  =  11/4 · 5/2  =  55/8 or 6 7/8 mph