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3 years ago

Please help marking brainliest

Mathematics

1 answer:

Alisiya [41]3 years ago

4 0

Answer:

A. The value of x is 5

B. The length of each side is 20!

Step-by-step explanation:

For part A., We can determine x by setting these equations to equal each other (as we know that all sides of a square are equal)! See below for how to:

$4x = 2x +10\\2x = 10\\x=5$

For part B. sub x for 5 to get the side length of one side...

$4(5) = 20\\2(5) +10=20$

We already know that all sides are equal, so the side length of each side is 20!

Hope I was of assistance! #SpreadTheLove <3

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What is being done to the variable in the equation = -40?

larisa86 [58]

Answer:

It's being divided by 5.

Step-by-step explanation:

In this question, the variable being used in the equation is being divided by 5. This is represented by the / symbol in the equation which is the symbol for division. If we multiply both sides by 5 we can isolate the variable M and get its value like so...

M/5 = -40 ... multiply both sides by 5

M = -200

Therefore in this scenario, the value of M would be -200

7 0

3 years ago

How would i do this? so confused!

Cerrena [4.2K]

Supplementary angles add to 180 degrees.

x+8x=180
9x=180
x=20

Find the supplement of an angle of 20 degrees
180-20=160

Final answer: 160 degrees and 20 degrees respectively

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3 years ago

15 scouts can sell all of their troop's cookies in 24 days. How many days would it take to sell the cookies if 18 scouts sell at

astra-53 [7]

Answer: 20

just beleive me its right

3 0

3 years ago

Read 2 more answers

Mark sold x pens for $2 each. He received less than $80 from the sale. a. Write an inequality for the number of pens sold.

Ganezh [65]

Answer:

x <40

Step-by-step explanation:

The income from the pens is 2*x

He made less than 80

2x <80

Divide each side by 2

2x/2 < 80/2

x < 40

7 0

3 years ago

A circle has a center of (5,-5) and goes through (6,-2). What is the radius?

azamat

Let O(5, -5) be the center of the circle, and P(6, -2) be a point on this circle.

The distance between points O and P, that is |OP|, is the radius of this circle,

We use the distance between 2 points formula:

|OP|= $\sqrt{ (x_2-x_1)^{2} + (y_2-y_1)^{2} }= \sqrt{ (6-5)^{2} + (-2-(-5))^{2} }$
$= \sqrt{ 1^{2}+ (-2+5)^{2}} = \sqrt{1+9}= \sqrt{10}$ (units)

Answer: $\sqrt{10}$ units

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3 years ago