Ratios And Rates Worksheet - Chapter 3 Page 34
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38Chapter Review
Chapter 3
Frequently Asked Questions
How can you solve a rate problem using an equivalent rate?
Q:
You can set up a proportion to figure out an appropriate
A:
equivalent rate. For example: You travel 650 km in 8 h.
How far would you travel in 3 h?
■
65
0
8
3
■
write the two rates as equivalents
65
0
3
8
with a common denominator
8
3
3
8
■
650
3
8
the numerators are equal
■
1950
8
■
1950
8
■
243.75
You would travel 244 km in 3 h.
How can you solve a ratio problem using a fraction?
Q:
A:
You can set up an equation with two equivalent fractions.
■
For example, to solve 5 : 6
12 :
5
1
2
write the ratios as fractions
■
6
■
write the fractions as equivalents
5
1
2
6
■
■
6
6
with the same denominator
■
5
6
12
the numerators are equal
■
5
72
■
72
5
14.4
135
Ratios and Rates
NEL
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