3 years ago

I need to know how to solve this problem step by step 5(1x-7)+42=3x+7+2x

1 answer:

SOVA2 [1]3 years ago

5 0

this is how i would solve this problem. I hope it's helpful

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Gwar [14]

27-9r
explaintion:
3•9+3•-3r
27+3•-3r=
27-9r

6 0

3 years ago

spayn [35]

The volume of oblique cone = $\frac{1}{3} \pi r^{2} h$

Now radius is doubled is now it is 2r

And height is reduced to 2/3 of its original size that is 2/3 h

So plugging the values we get volume

New Volume = $\frac{1}{3} \pi (2r)^2 (\frac{2}{3} h)$

= $\frac{1}{3} \pi 4r^2 (\frac{2}{3} h) = \frac{8}{6} \pi r^{2} h =\frac{8}{2} (\frac{1}{3} \pi r^{2} h )$ $=4*(\frac{1}{3} \pi r^{2} h )$

It means the volume becomes 4 times

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4 years ago

shusha [124]

V=4/3πr^3
36π=4/3πr^3
3/4(36π)=(4/3πr^3)3/4
27π=πr^3
π(27π)=r^3
27=r^3
square root
r=3
s.a=4πr^2
s.a=4π(3^2)
s.a=4π(9)
s.a=36π

5 0

3 years ago

Sergeu [11.5K]

The answer is 15.4z-12

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3 years ago

AlladinOne [14]

Answer:

x=9

Step-by-step explanation:

To find the x-coordinate, plug the y-coordinate into the equation and solve from there.

(0 = 2/3x - 6) (6 = 2/3x) (18 = 2x) 9 = x

8 0

4 years ago

I need to know how to solve this problem step by step 5(1x-7)+42=3x+7+2x ​