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Juli2301 [7.4K]
3 years ago
14

I need the set up and I'm solving for x, please help.

Mathematics
2 answers:
lawyer [7]3 years ago
7 0
I think it is X equals 20 because there’s 180 degrees I a triangle and 100+40= 140 and you have e 40 remaining and since it’s 2x you do 40 divided by 2 which is 20 do the inverse to check
NemiM [27]3 years ago
6 0

Answer:

100 + 40 + 2x = 180

combine like terms

140 +2x = 180

-140         -140

2x = 40

/2    /2

x = 20

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Tresa drew a quadrilateral with two pairs of parallel sides and four right angles what what quadrilateral could she have drawn
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Drag a drop a number into each box to create pairs of corresponding angles
guajiro [1.7K]

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What boxes....

Step-by-step explanation:

6 0
4 years ago
Find the slope given the points (-5,-3) and (2,4)
Setler79 [48]

Answer:

The slope of the line is 1.

Step-by-step explanation:

We are given two coordinate points:

  • (-5, -3)
  • (2, 4)

We can use the rate of change formula to find the slope of the points.

  • \displaystyle \frac{\triangle y}{\triangle x}

In mathematics, coordinate pairs are labeled as:

(x_1, y_1) \ \text{and} \ (x_2, y_2)

Therefore, we can relabel our points:

  • x_1 = -5
  • y_1 = -3
  • x_2 = 2
  • y_2 = 4

After we do this, we can expand the rate of change formula:

\displaystyle m = \frac{y_2-y_1}{x_2-x_1}

Now, we can use simple substitution to solve for m, or the slope.

\displaystyle m = \frac{y_2-y_1}{x_2-x_1}\\\\m = \frac{4-(-3)}{2-(-5)}\\\\m = \frac{7}{7}\\\\m = 1

Therefore, the slope of the line is 1.

8 0
3 years ago
Read 2 more answers
y varies inversely with x. If y = 2.4 and k (the constant of variation) = 8.88, what is x? Round to the nearest tenth, if necess
Archy [21]

Answer:

3.7

Step-by-step explanation:

Inversely means we are taking the constant and dividing it.

So y varies inversely with x means "y=k/x".

k is a constant.  We can find the constant if they give us a point on this curve.

The constant is a number that doesn't change no matter your input and output.

y=\frac{k}{x}

So they actually give us k=8.88 and y=2.4 so let's input this:

2.4=\frac{8.88}{x}

We need to solve this equation for x.  You can do your favorite thing in cross-multiply. But how, Freckles?  Well just slap a 1 underneath that 2.4.  You can do that because 2.4/1 is still 2.4.

\frac{2.4}{1}=\frac{8.88}{x}

Cross-multiply:

2.4x=8.88(1)

2.4x=8.88

Divide both sides by 2.4:

x=\frac{8.88}{2.4}

x=3.7 when y=2.4.

8 0
4 years ago
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