Rates
We will determine unit rates.

Rate: A rate is ratio that compares two quantities with different units like miles per hour.

Unit rate: A unit rate is a rate that has a denominator of 1.

 

Examples:

1).Anna downloaded 35 songs in 5 minutes. How many songs did she download per minute?

Step 1: We need to write a rate that compares the number of downloads to the number of minutes.

When you set up a proportion using rates, units are different within the fractions. songs are in the numerator of both fractions and minutes are in the denominator of both fractions .UNITS need to be labeled.

Step 2: Divide the numerator and denominator by 5. Anna downloaded 7 songs per minute.

 

2). Jonathan drove 405 miles using one tank of gasoline on vacation. His car's gasoline tank holds 15 gallons. How many miles per gallon did he drive?

Step 1: We need to write a rate that compares the miles Jonathan drove to the number of gallons.When setting up a proportion using rates, units are different within the fractions. Miles are in the numerator of both fractions and gallons are in the denominator of both fractions. You also need to label the units.

Step 2: Divide the numerator and denominator by 15. Jonathan drove 27 miles per gallon

 

 

3). The Shanghai Maglev Train is the fastest train in the world, traveling about 2,144 miles in 8 hours. How many miles does it travel in one hour.Step 1:We need to write a rate comparing miles to hours. Miles will be in the numerator and hours will be in the denominator.

Step 2: Divide the numerator and denominator by 8. The Shanghai Maglev Train travel 268 miles per hour.

 

 

Found on the Web

PowerPoint

Unit Rates

Web Games:

Unit Price Game

Matching, Flashcards, and Concentration


Views: 333

Comment

You need to be a member of Math Concentration to add comments!

Join Math Concentration

Advertising Information

If you represent a company and would like advertising, sponsorship, or promotions information, CLICK HERE to request our media kit.

Make a Difference

Please support our community of students, parents, and teachers or caregivers who all play vital roles in the homework process by contributing whatever you can to keep our site alive :)

Members

Notes

Figure This Challenge #56

  • Complete Solution will be given on May 17, 2015

Complete Solution:

 …

Continue

Created by Wanda Collins May 10, 2015 at 1:56pm. Last updated by Wanda Collins May 10, 2015.

Math Homework Help Online

Professional math homework help get your math solved today.

Do you need help with math homework? Our reliable company provides only the best math homework help.

Try best college paper writing service to get the best custom essays for affordable prices

Fun Math Facts:

Math Limerick

Question: Why is this a mathematical limerick?

( (12 + 144 + 20 + 3 Sqrt[4]) / 7 ) + 5*11 = 92 + 0 .

Answer:

A dozen, a gross, and a score,
plus three times the square root of four, divided by seven, plus five times eleven, is nine squared and not a bit more.

---Jon Saxton (math textbook author)

Presentation Suggestions:
Challenge students to invent their own math limerick!

The Math Behind the Fact:
It is fun to mix mathematics with poetry.

Resources:

Su, Francis E., et al. "Math Limerick." Math Fun Facts.

funfacts

Pre-K, Kindergarten, First, Second, Third, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Tenth, Eleventh, Twelfth, Higher Education, Adult Education, Homeschooler - TeachersPayTeachers.com

Photos

Loading…
  • Add Photos
  • View All

Badge

Loading…

   Excellent!
   Very Good
   Good
   Fair
   Poor
&


AmericasBest.com