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Input/Output
Percent Increase/Decrease
Ratios
100
What is .25 as a percent?
25%
100
What is the missing number in the pattern? 25, 30, ____ , 40, 45, 50
35
100
Complete the input/output table: Input Output 50 41 11 2 23 ?
14
100
Jacksonville, Florida gets about 10 hours of daylight in February. It gets 4 more hours from February to May. Juneau, Alaska gets about 6 hours of daylight in December. It also gets 4 more hours from December to February. Is the percent increase the same for both cites?
Jacksonville 4/10 = 40% Juneau 4/6 = 67% No
100
A used clothing sale has old shirts on a rack. You can buy three shirts for $30. What does one shirt cost?
$10
200
What is .75 as a percent?
75%
200
Draw the algebraic expressions using circles. x + 3
Box 1 Box 2 Box 3 Box 4 5 5 6 7
200
Complete the input/output table. Input Output 7 14 10 20 4 ?
8
200
Two football players are training for the season. At the end of four months, each player lost 20 pounds. Bill weighed 180 pounds in April. Michael weighed 170 pounds in April. Which player had the biggest percent decrease in weight?
Bill 20/180 =11.1% Michael 20/170 =11.7% Michael
200
At the end of the season, all of the baseball caps in the store go on sale. You can buy five caps for $14 or 10 caps for $32. Which is the better deal?
5/14 =10/28 10/32 = 10/32 5/14 is a better deal.
300
What is .oo1 as a fraction?
1/1,000
300
Draw the algebraic expressions using circles. 5 · x
Box 1 Box 2 Box 3 Box 4 5 10 15 20
300
Complete the input/output table. Input Output 12 7 20 15 6 ?
1
300
The number of tornadoes in Iowa and Kansas is up this year from last year. Iowa had four more this year than last year. Last year Iowa had eight tornados. Kansas had five more tornadoes this year than last year. Last year it had 20 tornados. Which state had the biggest percent increase in tornadoes?
Iowa 4/8= 50% Kansas 5/20 = 25% Iowa had the biggest increase.
300
The punch at the party is made with five cups of orange juice, seven cups of lemon-lime soda, and two cups of strawberry soda. What is the ratio of strawberry soda to orange juice?
2/5 or 2:5
400
What is 12.5% as a decimal?
.125
400
An even number (n is any integer) (a) 2 + n (b) 2 · n (c) 2 − n
B
400
Complete the input/output table. Input Output 4 12 8 24 3 ?
9
400
Plant A was 4 inches tall and grew 1 inch. Plant B was 5 inches tall and grew 2 inches. Which plant had the bigger percent increase in growth?
Plant A: 1/4 = 25% Plant B: 2/5 = 20% Plant A had the bigger increase.
400
What is the cost for one box of pencils? Boxes of Pencils 10 1 Cost $5 x
.50
500
What is 150% as a fraction?
1 50/100 1 5/10 1 1/2
500
2 · n + 1 (a) even (b) divisible by 2 (c) odd
C
500
Complete the input/output table. Input Output 6 3 10 5 16 ?
8
500
Jones Lake was 100 feet deep and Taylor Lake was 88 feet deep last year.Both lakes dropped 4 feet this year. What was the percent decrease for each lake?
Jones: 4/100 = 4% Taylor: 4/88 = 4.5%
500
Write the different ratios. There are 30 students on the varsity soccer team. They are all juniors or seniors. There are 22 seniors. *Remember Part-to-Part AND Part-to-Whole ratios.
Juniors to Seniors: 8/22 Juniors to Team: 8/30 Seniors to Team: 22/30