7 Math Common Assessment Name: __________________________________ Unit #3A Ratios and Proportions

7th Math Common Assessment
Unit #3A Ratios and Proportions
REVIEW (7.4A, 7.4B, 7.4C, 7.4D, 7.4E, 7.5C, 7.7A)
4. The graph below represents the price of the soda
at one store. What is the constant of
proportionality?
Cost of soda
80
70
60
50
40
30
20
10
0
0
2
4
6
8
10
12
14
Time Worked (t)
What is the constant rate of change for this
situation?
2. Your flight took you 3 hours and 20 minutes to
travel to your destination. The plane you are in
flies at 450 miles per hour. What is the distance
to your destination?
3. You jogged 3 miles to a friend’s house and it
took you 45 minutes to get there. How many
miles per hour do you jog?
Price (cents)
Number of jeans made ($)
1. The graph below shows the relationship
between the numbers of jeans a worker makes
and the number of hours worked.
Name: __________________________________
280
260
240
220
200
180
160
140
120
100
80
60
40
20
0
0
3
6
9
12
15
18
Ounces
5. A pancake batter consists of 4 cups of mix and
3¾ cups of water. How much water is needed if
you use 6 cups of mix?
6. 12,000 water balloons are being filled with
water at a rate of 16 balloons per minute. At this
rate, how many minutes will it take to fill 2/3 of
the water balloons
7. How many gallons are in 12 liters?
1 liter = 1.06 quarts
4 quarts = 1 gallon
Record your answer and
fill in the bubbles on
your answer document.
Be sure to use the correct
place value
8. Below is a map of your hometown. Denton is
under a lot of construction and has closed the
road you take from your home to school. You
will first have to drive by the gas station before
going to school. How many miles less is it going
straight to school instead of this detour?
10. Mr. Long Leggs is trying to break a world
record. Mr. Leggs will run 20,000 feet at a rate
of 880 feet per minute. The situation is modeled
by the equation below, where f is the number of
feet remaining and t represents the number of
minutes already ran.
f = 20,000 – 880t
Complete the table.
t
f
1
4
8
11
22
School
10 mm
Home
Gas
Station
5 mm = 1 mile
11. Which equation best represents the data in the
table below?
9. The model of this truck and trailer is made using
a scale of 1 inch to 36 feet (1:36). If the length
of the model is 15 inches then about how many
feet long is the length of the actual truck and
trailer?
x
y
0
2
2
5
4
8
6
11
2x – 3y = -6
3x - 2y = 4
2x – 3y = -11
3x – 2y = -4
8
14
ADV ONLY:
12.
13. Find the slope of a line that passes through
the points (4, 10) and (2,10)