Seventh Grade Staar With The New Teks Worksheet - 2015 Page 7
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45The data set below represents a direct variation. Identify the constant of
proportionality.
20.
7.4c
2
9
A
C
9
2
B 9
D 2
Tell whether the relationship is a proportional relationship. If so, give the constant
of proportionality.
50 y
40
30
20
21.
7.4c
10
1
2
3
4
5
6
x
Hours
A The relationship is proportional. The constant of proportionality is 2.5.
B The relationship is proportional. The constant of proportionality is 5.
C The relationship is proportional. The constant of proportionality is 20.
D The relationship is not proportional.
There were 25 questions on the science test. Here were the number correct for 5
students:
Fred 21, Wilma 23, Barney 22, Betty 19, Bamm-Bamm 20
22.
Which students earned a score above 85%?
7.4d
A Fred, Wilma, Barney
B Wilma, Barney
C Barney, Bamm-Bamm
D Fred, Wilma, Betty
A watch cost $75.99. If the sales tax rate is 6.25%, what is the amount of sales tax?
23.
7.4d
A $0.48
B $2.19
C $4.75
D $474.94
th
Created by Lance Mangham, 6
grade math, Carroll ISD
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