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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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2 years ago

Find the dimensions of the rectangle with area 256 square inches that has minimum perimeter, and then find the minimum perimeter

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Answer:

Dimensions: $A=a\cdot b=256$

Perimiter: $P=2a+2b$

Minimum perimeter: [16,16]

Step-by-step explanation:

This is a problem of optimization with constraints.

We can define the rectangle with two sides of size "a" and two sides of size "b".

The area of the rectangle can be defined then as:

$A=a\cdot b=256$

This is the constraint.

To simplify and as we have only one constraint and two variables, we can express a in function of b as:

$b=\frac{256}{a}$

The function we want to optimize is the diameter.

We can express the diameter as:

$P=2a+2b=2a+2*\frac{256}{a}$

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$dP/da=2+2\cdot (-1)\cdot\frac{256}{a^2}=0\\\\\frac{512}{a^2}=2\\\\a=\sqrt{512/2}= \sqrt {256} =16\\\\b=256/a=256/16=16$

The minimum perimiter happens when both sides are of size 16 (a square).

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3 years ago

What would be the final balance of an emergency fund containing three to six months’ worth of expenses totaling $4,700 that is h

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Step-by-step explanation:

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3 years ago

A water sprinkler has a range of 5 meters as shown. The jet of water from the sprinkler sweeps out at an angle of 85° as the noz

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3 years ago

Read 2 more answers

A turtle can walk \dfrac{1}{12} 12 1 start fraction, 1, divided by, 12, end fraction of a kilometer in an hour. The turtle is

sashaice [31]

Answer:

It will take turtle $2\frac{2}{5} \ hour$ to reach the pond.

Step-by-step explanation:

Given:

A turtle can walk 1/12 of a kilometer in an hour.

The turtle is 1/5 of a kilometer away from a pond.

Now, to find the time it will take the turtle to reach the pond.

Speed of turtle = $\frac{1}{12}\ kilometer\ per\ hour.$

Distance of turtle from the pond = $\frac{1}{5} \ kilometer.$

Now, to get the time it will take turtle to reach the pond we put formula:

$Time=\frac{Distance}{speed}$

$Time=\frac{\frac{1}{5}}{\frac{1}{12}}$

$Time=\frac{1}{5} \times \frac{12}{1}$

$Time=\frac{12}{5}$

$Time=2\frac{2}{5}\ hour.$

Therefore, it will take turtle $2\frac{2}{5} \ hour$ to reach the pond.

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3 years ago

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

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