If a is directly proportional to b and if a = 30 when b = 21, what is the value of a when b = 10 1/2?

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
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If a is directly proportional to b and if a = 30 when b = 21, what is the value of a when b = 10 1/2?
A.
B. $1,590
C. $2,040
D. $2,610
E. $3,120
150&H=ce00
100KHa00
30. If a is directly proportional to b and if a = 30 when
b=21, what is the value of a when b=10?
20
F.
3
147
G.
20
Н. 10
J. 15
К. 30
33. What number is 175 percent of 16?
А. 12
В. 20
S 24
Transcribed Image Text:A. B. $1,590 C. $2,040 D. $2,610 E. $3,120 150&H=ce00 100KHa00 30. If a is directly proportional to b and if a = 30 when b=21, what is the value of a when b=10? 20 F. 3 147 G. 20 Н. 10 J. 15 К. 30 33. What number is 175 percent of 16? А. 12 В. 20 S 24
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