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erastova [34]
3 years ago
5

Please Help, and show work..

Mathematics
1 answer:
azamat3 years ago
3 0
Hi there! So the the new price is $93, and went up from $55. Let's subtract the numbers. 93 - 55 is 38. The change is 38. To find the percent markup, we can write and solve a proportion. Set it up like this:

38/55 = x/100

This is because the amount of change goes above the original (55), and x represents the percent out of 100. We are looking for the markup. Let's cross multiply the values. 100 * 38 is 3,800. 55 * x is 55x. 3,800 = 55x. Now, divide each side by 55 to isolate the x. 55x/55 cancels out. 3,800/55 is 69.0909 or 69 when rounded to the nearest whole number. There. The percent of markup is approx. 69%.
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Find the intercepts to graph the line. <br> 4x−y=−4
Murljashka [212]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Find the angle that the line through the given pair of points makes with the positive direction of the x-axis
alexdok [17]

Answer:

Therefore the angle that the line through the given pair of points makes with the positive direction of the x-axis is 45°.

Step-by-step explanation:

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Let

A(x₁ , y₁) = (1 , 4) and  

B( x₂ , y₂ ) = (-1 , 2)

To Find:

θ = ?

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Slope of a line when two points are given is given bt

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Slope=\tan \theta

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tan 45 = 1

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5 0
3 years ago
Given the replacement set {2, 3, 4, 5}, solve 7x – 4 = 3x + 8.
Ludmilka [50]
7x-4=3x+ 8

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plus 4 to both sides 4x=12

12 divide by 4 = 3
hopeful that helps
5 0
3 years ago
Read 2 more answers
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