The perimeter of the figure is 6x. Find length of side. x + 3, 2x+4.

Mathematics

1 answer:

zimovet [89]3 years ago

8 0

1) Let's look at what we know and Create an equation:

Perimeter: 6x

Side A: x + 3

Side B: 2x + 4

Side C (Unknown): Let's call this 'a'.

Because you find the perimeter of a figure by adding the lengths of all its sides together, our equation would be (the parentheses are only there to help you visualize):

(X + 3) + (2x +4) + (a) = 6x

(Side A+Side B+Side C = Perimeter)

2) From here, we combine like terms:

3x + 7 + a = 6x

3) Isolate the variable in which we are solving for (a):

Since we cannot simplify any further, the length of the missing side is <u>3x - 7</u>.

You might be interested in

7000 litres of water is pumped out of a tank in 42 minutes. How many litres could be pumped out in one hour at the same rate?

viktelen [127]

Answer:

8600 litre×235 will be there in the tanks

7 0

3 years ago

Z to the power of 2 =1

stiv31 [10]

That would be written as:

$z^{2} = 1$

And the step-by-step equation would be:

$z^{2} = 1$ → we take the 2 to the right side of the equation and do the IO*

$z = \sqrt{1}$ →we solve for $\sqrt{1}$

$z = 1$ → final answer

*Ps - IO is not an existing term and stands for inverse operation. In this case, because when we take to 2 to the right side of the equation (the 2 is a power) it'll have to turn into a square root (because exponents and roots are inverse operations)

Hope it helped,

BioTeacher101

3 0

3 years ago

How do i write the opposite of one-third of a number is greater than 9

gtnhenbr [62]

1/3x<9. This is the....may be

7 0

3 years ago

Read 2 more answers

Solve the equation -10=-6+2c

Neko [114]