Page 448 - Basic College Mathematics with Early Integers

Chapter 5 Vocabulary Check

Fill in each blank with one of the words or phrases listed below.

not equal equal cross products rate mass unit fractions unit rate
ratio unit price proportion meter liter weight
1. A is the quotient of two numbers. It can be written as a fraction, using a colon, or using the word to.
x 7
2. = is an example of a .
2 16
3. A is a rate with a denominator of 1.
4. A is a “money per item” unit rate.
5. A is used to compare different kinds of quantities.
x 7
#
#
6. In the proportion = , x 16 and 2 7 are called .
2 16
7. If cross products are , the proportion is true.
8. If cross products are , the proportion is false.
9. is a measure of the pull of gravity.
10. is a measure of the amount of substance in an object.This measure does not change.
11. The basic unit of length in the metric system is the .
12. To convert from one unit of length to another, may be used.
13. The is the basic unit of capacity in the
metric system.
Are you preparing for your
test? Don’t forget to take the Chapter 5 Test on
page 434. Then check your answers at the back of
the text and use the Chapter Test Prep Videos to
5 Chapter Highlights see the fully worked-out solutions to any of the
exercises you want to review.

Definitions and Concepts Examples

Section 5.1 Ratios

A ratio is the quotient of two quantities. The ratio of 3 to 4 can be written as
3
or 3 : 4
4
c c
fraction notation colon notation
Rates are used to compare different kinds of quantities. Write the rate 12 spikes every 8 inches as a fraction in
simplest form.
12 spikes 3 spikes
=
8 inches 2 inches
A unit rate is a rate with a denominator of 1. Write as a unit rate: 117 miles on 5 gallons of gas
117 miles 23.4 miles or 23.4 miles per gallon
=
5 gallons 1 gallon or 23.4 miles/gallon
A unit price is a “money per item” unit rate. Write as a unit price: $5.88 for 42 ounces of detergent
$5.88 $0.14
= = $0.14 per ounce
42 ounces 1 ounce
425