SOLUTION: I worked these problems out and i just want to verify if i got the correct answers, please be kind enough to let me know if they are incorrect and if so then why?...Thanks.! 1.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I worked these problems out and i just want to verify if i got the correct answers, please be kind enough to let me know if they are incorrect and if so then why?...Thanks.! 1.      Log On


   



Question 426326: I worked these problems out and i just want to verify if i got the correct answers, please be kind enough to let me know if they are incorrect and if so then why?...Thanks.!
1.Which type of variation is represented by a1b1 = b2a2?
1. inverse
2. direct
3. joint
4. none
A?
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2. Suppose y varies directly as x. If y = 5 when x = 15, find x when y = 9.
1. 3
2. 6
3. 12
4. 27
D?
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3.Suppose y varies inversely as x. If y = 2 when x = 14, find y when x = 7.
1. 1
2. 4
3. 6
4. 8
B?
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4.Suppose y varies jointly as x and z. If y = 10 when x = 2 and z = 4, find y when x = 4 and z = 3.
1. 6
2. 12
3. 15
4. 20
C?




Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!

2.ans: 4. 27
3. ans: 2. 4
4.ans : 3. 15