CPhill

Actually, Melody, I think kitty<3 got exactly the same answer you did. She just took the coefficients to their "powers."

Breaking news......the bird and nest have been found safe......the mother claims that she temporarily went off on a "tangent"........

Nice pic......

I think you scared the bird off, though.......looks like she took the nest, too....

I'd say that this is impossible to answer...we have

tan(14) = opp/80

80tan(14) ≈ 19.95 ft

All we can say is that Alisa is about 20 ft higher than Dalja. But, since we don't know Dalja's height, we can't definitively say how high Alisa is off the ground.

That's impossible....even if all of them were dimes you'd only have 234(.10) = $23.40

Let x be the weight of the 3rd chair

Then since it is 1/3 the weight of the second, the weight of the second must be 3x

And the 1st chair is twice as heavy as the second, so its weight = 6x

Then 6x + 3x + x = 16.9

10x = 16.9

x = 1.69

And he 1st chair's weight = 6(1.69) = 10.14 lbs.

3x over m-nx equals 2 then x=?

(3x)/(m-nx) = 2   Multiply both sides by m-nx

3x = 2(m - nx)     distribute the 2 on the right

3x = 2m - 2nx      add 2nx to both sides

3x + 2nx = 2m     factor out x on the left

x(3 + 2n) = 2m    divide by 3 + 2n on both sides

x = 2m/(3 +2n)

Hey....I didn't say it was gonna' pretty, did I???

4/5(x + 5) = -1/5x + 6     distribute 4/5 on the left

4/5x + 4 = -1/5x + 6       add 1/5x to both sides

x + 4  = 6                        so its clear that x = 2

Just put it into the on-site calculator and watch magic happen !!!

Let's go from  Melody's last step...

4.543 = R (1 + .7049/R)      ....distribute R through on the right

4.543 = R + .7049             .......subtract .7049 from both sides and that will give you "R'