Slope
Direct Variation
Percent Proportion
Ratios/ Proportions
Percent Equation
100
Slope is the '____________' over '________________'
What is rise over run
100
Tell whether x and y show direct variation.Explain your reasoning. y + 1 = 2x
The equation cannot be written as y = kx. So, x and y do not show direct variation.
100
12 is 100% of _____.
12
100
There are 100 6th graders, 98 7th graders and 105 8th graders. What is the ratio of 6th graders to 8th graders?
What is 100:105, 100 to 105, 100/105.
100
20% of _____ is 10.
What is 50?
200
Find the slope of the line that passes through the given two points ( 0, 0) , ( 1/3 , 7/ 3)
m = 7
200
Tell whether x and y show direct variation. Explain your reasoning. y = 2x
The equation can be written as y = kx. So, x and y show direct variation.
200
You score an 80% on your test. You answer 44 questions correctly. How many questions were on the test?
55 questions.
200
Find the missing term 3 to 2 = __ to 8
12
200
25% of 16 is _____.
What is 4.
300
The formula for slope is ____________?
What is (y2 - y1) __Over___( x2 - x1)
300
Tell whether x and y show direct variation. Explain your reasoning. x = 4y
Yes; The equation can be written as y = kx. So, x and y show direct variation.
300

16 out of 20 people use debit cards instead of checks. What percentage like to use debit cards?

What is 80%?

300
You mix 1/4 cup of juice concentrate for every 2 cups of water to make 18 cups of juice. How much juice concentrate and water do you use
2 cups of juice concentrate. 16 cups of water.
300
_____% of 25 is 18.75
What is 75%?
400
Find the slope of the line that passes through the given two points. ( -4, -1), (1, 4)
m = 1
400
The variables x and y vary directly. If x=3 and y=5, what is k?
K= 5/3 or k = 1.67 y = 1.67x
400
65% of students do not study prior to tests. If there are a total of 700 students, how many do not study for tests?
What is 455?
400
You spend 150 minutes in 3 classes. Write and solve a proportion to find how many minutes you spend in 5 classes.
What is 250 minutes.
400
Mary got 18 out of 25 on her test. What was her percentage?
What is 72%?
500
Find the slope of the line that passes through the two points. ( -3, -4), ( 6, 8)
m = 4/3
500
The variables x and y vary directly. Use the values to fi nd the constant of proportionality. Then write an equation that relates x and y. y = 20; x = 12
K= 5/4 y= 1.25 x
500
You are assigned 32 math exercises for homework. You complete 87.5% of these before dinner. How many do you have left to do after dinner?
32- 28 = 4 left
500
A person who weighs 120 pounds on Earth weighs 20 pounds on the Moon. How much does a 93-pound person weigh on the Moon?
15.5 Lbs.
500
A salesperson receives a 3% commission on sales. The salesperson receives $180 in commission. What is the amount of sales?
$6000
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