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Coordinate Planes
Ratios
Equivalent Ratios
Using Algebra
Flashback
100
(3,2) is an example of an ________ ________.
Ordered Pair
100
A ratio is a _________ of 2 quantities.
comparison
100
Equivalent Ratios are ratios that are _______, or they name the same comparison.
equal
100
Use equivalent ratios to find the unknown value: 2:6 = ?:30
10
100
1/5 + 2/5 =
3/5
200
The first number in an ordered pair tells you to go which direction?
Right or left
200
Draw a picture of the ratio 4:2
answers may vary
200
Use a table to name two ratios that are equivalent to 6:7.
12:14, 18:21....
200
Use equivalent ratios to find the unknown value: 14:? = 7:9
18
200
Change the mixed number into an improper fraction: 4 3/5
23/5
300
In an ordered pair, the second number tells you to go which direction?
Up or down
300
Write the ratio described in the following situation: Wen is arranging flowers in vases. For every 1 rose she uses, she uses 6 tulips.
1:6
300
Are the ratios equivalent? 2:3 and 5:6
no
300
Use equivalent ratios to find the unknown value: ?:6 = 16:24
4
300
Change the improper fraction into a mixed number: 45/6
7 3/6 reduces to 7 1/2
400
Draw a picture and label the 4 quadrants using Roman Numerals.
see whiteboard for correct drawing
400
Joe reads 2 books for every 3 books Sam reads. Find the number of books Sam reads if Joe reads 6 books. (Draw a picture if you need to)
Sam reads 9 books if Joe reads 6.
400
Tristan uses 7 stars and 9 diamonds to make a design. Write two ratios that are equivalent to 7:9
14:18, 21:27...
400
Use equivalent ratios to find the unknown value: 18:15 = 6:?
5
400
Change the following fraction into a decimal: 4/8
0.5 (think, 4 is half of 8, and it reduces to 1/2)
500
What quadrant would the ordered pair (-5, 8) fall in?
Quadrant II
500
Martin mixes 1 cup lemonade with 4 cups cranberry juice to make his favorite drink. How much cranberry juice does he need if he uses 5 cups of lemonade?
20 cups
500
There are 7 girls and 16 boys in Jamie's math class. There are 14 girls and 36 boys in Javier's math class. Is the ratio of girls to boys in the two classes equivalent? Use tables to show your work.
No. When both numerators are 14, the denominators are different.
500
Use equivalent ratios to find the unknown value: 42:54 = ?:9
7
500
Change the decimal to a fraction: 0.40
40/100 reduces to 4/10 reduces to 2/5