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agasfer [191]
3 years ago
13

NEED HELP ASAP PLEASE HELP

Mathematics
2 answers:
BigorU [14]3 years ago
6 0
If im not mistaken, the answer should be B
ikadub [295]3 years ago
5 0
Angles on a straight line add up to 180°
This means we can say that:

(5x + 20) + (4x +25) = 180

Now we have an equation that we can solve:

(5x + 20) + (4x +25) = 180
9x + 45 = 180    <em>(we collected the terms : 4x + 5x = 9x, and 20 + 25 = 45)</em>
9x = 135  <em>(we subtracted both sides by 45, to get the x values alone on one side)
</em>x = 15    <em>(we divided both sides by 9, to get what just x is)
</em><em>-------------------------------------------------------------------------------------------------------------

</em>Now that we know the value of x, we can substitute it into the equations given in the diagram:

5x + 20 = 5 * 15 + 20
              = 95°

4x + 25 = 4 * 15 + 25
              = 85°
-------------------------------------------------------------------------------------------------------------

Answer:

So the measure of the two angles are:
A)  95
° and 85

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Someone please help me
MariettaO [177]

Hey there! I'm happy to help!

Let's think of this as the equation y=mx+b, where m represents the slope and b equals the y-intercept.

The y-intercept is where the line hits the y-axis. As we can see, it hits it at the y-value of zero. Therefore, our equation is just left as y=mx now because b is 0.

We want to find the slope now. This is known as the rise/run, or the y/x. This is basically saying how far up it goes for every one step to the right. If we go to the x-value of one, we see that the y-value is at a little bit less than one. We want to keep on moving to the right until the y-value is at a nice integer value (number without fractions).

If we keep on moving to the right, we see that at the x-value of 3, the y is at 2. This means that the slope is 2/3. And it makes sense! When we were looking at that value of 1, the y-value was less than one and looked like it was at about 2/3, or 0.666....

This will apply to all points on the line. Our y will always be 2/3 of what x is.

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I hope that this helps! Have a wonderful day!

8 0
4 years ago
Need help please 70 points
zloy xaker [14]
Ok what do you need help with
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Marcel bought a new hat for $21.99 and 2 pairs of socks for $3.99each. What is the total price, including a 7.5% sales tax?
NNADVOKAT [17]

Cost of a hat bought by Marcel = \$ 21.99

Cost of a pair of socks = \$ 3.99

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Therefore, the total price including the sales tax = \$ 29.97 + \$ 2.25

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