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3 years ago

3(x - 2) = 12show how you would solve plz

Mathematics

2 answers:

Yakvenalex [24]3 years ago

8 0

Answer: x=6

Step-by-step explanation:

3(x-2)=12

3x-6=12

3x=18

x=6

MrMuchimi3 years ago

4 0

Answer:

x = 6

Step-by-step explanation:

3(x - 2) = 12

3x - 6 = 12

+6 = +6

3x = 18

÷ 3 = ÷3

x = 6

Hope this helps

-Amelia

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Line GH contains points G(–2, 6) and H(5, –3). What is the slope of ?

Anon25 [30]

Answer:

$\Huge\boxed{\mathsf{-\frac{9}{7} }}}$

Step-by-step explanation:

SLOPE FORMULA:

$\displaystyle \mathsf{\frac{Y_2-Y_1}{X_2-X_1}=\frac{RISE}{RUN} }$

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4 0

3 years ago

Read 2 more answers

The radius of a right circular cone is increasing at a rate of 2 inches per second and its height is decreasing at a rate of 2 i

Marrrta [24]

Answer:

Rate of change of volume when the radius is 40 inches and the height is 20 inches = 0 inch³/s

Step-by-step explanation:

We have

$\texttt{Volume = }\frac{1}{3}\pi r^2h$

Taking derivative with respect to time,

$V=\frac{1}{3}\pi r^2h\\\\\frac{dV}{dt}=\frac{1}{3}\pi \frac{d}{dt}\left (r^2h \right )\\\\\frac{dV}{dt}=\frac{1}{3}\pi \left ( 2r\frac{dr}{dt}\times h+r^2\frac{dh}{dt}\right)$

Given that

r = 40 inches

h = 20 inches

$\frac{dr}{dt}=2inch/s\\\\\frac{dh}{dt}=-2inch/s$

Substituting

$\frac{dV}{dt}=\frac{1}{3}\pi \left ( 2r\frac{dr}{dt}\times h+r^2\frac{dh}{dt}\right)\\\\\frac{dV}{dt}=\frac{1}{3}\pi \left ( 2\times 40\times 2\times 20+40^2\times (-2)\right)\\\\\frac{dV}{dt}=\frac{1}{3}\pi \left (3200-3200\right)=0inch^3/s$

Rate of change of volume when the radius is 40 inches and the height is 20 inches = 0 inch³/s

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3 years ago

A construction crew has just finished building a road. The road is 10 5/6 kilometers long. If the crew worked for 5 days, how ma

anygoal [31]

Answer:

Step-by-step explanation:

10 5/6 km...in 5 days

(10 5/6) / 5 =

(65/6) / 5 =

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2 1/6 kilometers per day <===

6 0

4 years ago

3(x - 2) = 12show how you would solve plz​

3(x - 2) = 12show how you would solve plz