Question

The Martinez family walked three over five of a mile in three over eight of an hour. What equation can be used to calculate their unit rate in miles per hour?

three-fifths over three-eights equals one and three-fifths miles per hour
three-eighths over three-fifths equals one and three-fifths miles per hour
three-eighths over three-fifths equals five over eight mile per hour
three-fifths over three-eights equals five over eight mile per hour

Answer 1

@texaschic101 @phi @haydenhd

Answer 2

@texaschic101

Answer 3

pls help

Answer 4

anyone?

Answer 5

@phi

Answer 6

didn't you do this one ? or at least the same sort of problem.
First what do you want, based on
What equation can be used to calculate their unit rate in miles per hour?

Answer 7

? what do you mean

Answer 8

3/5 / 3/8

Answer 9

what fraction do we use ? miles/hours or hours/miles

Answer 10

miles/hours

Answer 11

yes.

what you wrote
3/5 / 3/8

is correct (but it helps to put in the "units") like this
3/5 miles / 3/8 hour

next what rule do we use if we divide by a fraction ?

Answer 12

@kira1502

Answer 13

ok

Answer 14

"flip"

Answer 15

flip and multiply

Answer 16

3/5 / 8/3

Answer 17

multply

Answer 18

multiply = 1.6

Answer 19

right?

Answer 20

yes, so you should write it as
3/5 * 8/3 (not 3/5 / 8/3)

but yes, 8/5 or 1 and 3/5

Answer 21

oh, ok

Answer 22

@phi