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.

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?
--------------------
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?
-----------------------
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?
-----------
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) (Show Source): You can put this solution on YOUR website!

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

RELATED QUESTIONS
Im sorry if this is in the wrong place, knew it went in either Polynomials or quadratic.... (answered by stanbon)

Hey guys! Almost out of Alg. II now (thank god)... Have a final coming up soon and I have (answered by askmemath,unreal)

HELP! im not sure how to go about solving these 2 simple problems! 1) ln(5x) + ln(9) = (answered by Fombitz)

I am having problems with these questions, Please help me out! 1) Solve 3 over w (answered by solver91311)

I can figure out how to do the graphs. I just don't know how to figure out the plotting... (answered by lotanez)

Multiply and Divide Polynomials - including FOIL I want to make sure that my answers... (answered by ankor@dixie-net.com,jim_thompson5910)

Two regular pentagons have perimeters of 8 cms and 16cm. What is the ratio of their... (answered by jim_thompson5910)

I just took a math test and was disappointed to see that I got a "C." I had worked very... (answered by chessace)

Find the exact values of sin 2θ, cos 2θ, and tan 2θ for the given value of θ. cos θ (answered by josmiceli)