Verify whether the following represent direct
variation or not. If they vary directly, find the
constant of variation.
(a) No. of pencils 1 | 2 | 3 | 4 | 5
Cost (in 3 6 12 18 24 | 30
(b) Time in hrs. 1 2 3 6 9 | 11 |
Distance 160 120 180 360 540 | 660
convered
(in km.)
© x 0.5 2.0 3.25 6.0 8.75
0.2 0.8 1.3 2.4 3.5
Answers
Answered by
2
Answer:
(a) not
(b) not
(c) yes
Step-by-step explanation:
(a) 1/3, 2/6=1/3, 3/12=1/4
(b) 1/160, 2/120= 1/60
(c) 0.5/0.2=5/2, 2.0/0.8=5/2, 3.25/1.3= 5/2, 6.0/2.4= 5/2, 8.75/3.5= 5/2
- constant variation is 5/2
Answered by
3
Answer:
(a) not
(b) not
(c) yes
Step-by-step explanation:
(a) 1/3, 2/6=1/3, 3/12=1/4
(b) 1/160, 2/120= 1/60
(c) 0.5/0.2=5/2, 2.0/0.8=5/2, 3.25/1.3= 5/2, 6.0/2.4= 5/2, 8.75/3.5= 5/2
- constant variation is 5/2
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