Scale Drawing
Unit Rate
Proportional Relationships
Percentages
Operations with Positive and Negative #s
100
Two cities are 3 inches apart on a map. The map has a scale of 1 inch = 150 miles. In real life, how far apart are the two cities?
What is 450 miles?
100
Find the unit rate of the cost per can:
$4.80 for 6 cans
$0.80/1 can
(It costs $0.80 per can)
100
Is this graph proportional? Why or why not?
No, though it is a straight line it does not pass through the origin (0,0).
A graph that is proportional is represented by a straight line that passes through the origin.
100
What is 8% as a decimal?
0.08
100
Determine the value:
|-27|
27
200
1 inch = 150 miles
4.5 inches = ? miles
What is 675 miles?
200
Find the unit rate of how much money is earned per hour:
$21.00/1 hour
200
Is this equation proportional? y= 3x
If so what is the constant of proportionality? (k)
PROPORTIONAL
k = 3
200
40 out of 200 is what %?
20%
200
Which expression is equivalent to 4 - (-7)?
A. 7 + 4
B. 4 - 7
C. -7 - 4
D. -4 + 7
A. 7 + 4
300
The scale of a model train is 1 inch to 13.5 feet. One of the cars of the model train is 5 inches long. What is the length, in feet, of the actual train car?
What is 67.5 ft?
300
What coordinate point represents the unit rate of this graph and what does it mean in context of the scenario?
The point (1, 12)
$12.00/1 hour ( In 1 hour you make $12)
300
Is this equation proportional? y= 4x + 10
If so what is the constant of proportionality? (k)
Not proportional because of the +10 at the end of the equation.
300
Convert 5/8 to a percentage.
62.5%
300
What value will make the equation true?
-2.1 - ? = - 1 1/2
A. 3.6
B. 0.6
C. - 0.6
D. -3.6
c. -0.6
400
A map has a scale of 1 centimeter = 50 miles. The actual distance between New York City and Washington, D.C. is 225 miles. What is the distance, in centimeters, between the two cities on the map?
What is 4.5 cm?
400
Interpret the point (10,12). Then find the unit rate.
120 pounds of beef jerky costs $120.00
Unit rate: $12/ 1 pound of beef jerkey
400
What does k represent in y=kx?
the constant of proportionality
400
What is 115% of 30?
34.5
400
A thermometer had a reading of 4F. During the night the temperature decreased 15F. After the decrease, what is the total number of degrees that the temperature must change for the thermometer to read 0F?
+11F
500
What is the distance between Paris, France and Montreal, Canada if it is 16 cm on a map? Use the scale 2cm = 750 km.
What is 6,000 km?
500
Find the unit rate and explain what it means in context of the scenario.
25 pizzas/ 1 day
There are 25 pizzas in 1 day.
* Choose a point ie: ( 2, 50 )
x , y
Then do y/x: 50 pizzas/2 days = 25 pizzas/1day
500
Is this table proportional? If so, what is the constant of proportionality?
No. There is no constant of proportionality.
k = y/x. When I divide the number of students (y) by the number of buses (x), I do not get the same number.
500
Mr. Silverman went to Costco. She spent $245.78 BEFORE TAXES. If the tax rate is 8.75%. What is the total after taxes to the nearest cent?
$267.29
500
A cook removes a package of food from a freezer and begins to defrost the package.
- The initial temperature of the package of food is -15°F.
- At noon, the temperature of the package of food has increased to 35°F.
What is the total change in temperature, in degrees Fahrenheit, for the package of food?
Total change of 50F.