Question 361829: I am having problems with these questions, Please help me out!
1) Solve
3 over w = 9 over w MINUS 1 over 11
3/w = 9/w - 1/11
2) Add, Simplify if possible
v+r/vr^2 + 5v+r/v^2r
(I know you are supposed to find the LCD, but I'm confused. vr^2 = v*r*r and v^2r= v*v*r?
3) Simplify by removing factors of 1
64x^11/ 72x^2 The answer I got is 8/9---is that correct?
4) Add, simplify if possible
9/21z + 4/49z ---- I got 75/147z ? Is that correct? The LCD is 147?
5) Solve
9/z+1 = 8/z-7
??The lcd (z+1)(z-7)??
6) Find the LCM
35c^7b^3, 7c^5b^2, 10c^9b^6 ?? I'm stuck...
5,10,15,20,25,30,35,40
1,7,14,21,28,35,42,49
10,20,30,40,50,60,70
*****Please don't just give answers for these problems, I need explanations....I am so confused!!!****
Answer by solver91311(24713)   (Show Source):
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