Rate - Jogger

[mominneedofhelp]

Jennifer and Rex jog along the Silver Trail. Jennifer jogs the first 1/4 mile in 1/hour. Rex jogs the first 2 miles in 1/3 4 hour.

a.) What is Jennifer’s unit rate? b.) What is Rex’s unit rate?


This is the last question, I been stuck on this for two days.

 

[Dr.Peterson]

Jennifer and Rex jog along the Silver Trail. Jennifer jogs the first 1/4 mile in 1/hour. Rex jogs the first 2 miles in 1/3 4 hour.

a.) What is Jennifer’s unit rate? b.) What is Rex’s unit rate?

This is the last question, I been stuck on this for two days.

The notation is odd. Does it literally say "1/hour" and "1/3 4 hour"? Those don't really mean anything.

The term "unit rate" is also unusual in this context, but I presume it is used in this curriculum to mean what we normally just call a "rate", that is, a distance per unit of time. That is found by dividing the distance by the time.

So if Jennifer jogged 1/4 mile in 1 hour, the rate is 1/4 divided by 1, which is just 1/4 mile per hour.

If Rex jogged 2 miles in 1 3/4 hour, as I'm guessing, then you have to divide 2 by 1 3/4, which is most easily done by writing 1 3/4 as an improper fraction. Is your difficulty in interpreting the problem, or knowing what operation to do, or working with fractions?

Does the book have any examples like this, involving a unit rate? An image might be helpful.

 

[mominneedofhelp]

The notation is odd. Does it literally say "1/hour" and "1/3 4 hour"? Those don't really mean anything.

The term "unit rate" is also unusual in this context, but I presume it is used in this curriculum to mean what we normally just call a "rate", that is, a distance per unit of time. That is found by dividing the distance by the time.

So if Jennifer jogged 1/4 mile in 1 hour, the rate is 1/4 divided by 1, which is just 1/4 mile per hour.

If Rex jogged 2 miles in 1 3/4 hour, as I'm guessing, then you have to divide 2 by 1 3/4, which is most easily done by writing 1 3/4 as an improper fraction. Is your difficulty in interpreting the problem, or knowing what operation to do, or working with fractions?

Does the book have any examples like this, involving a unit rate? An image might be helpful.

theres