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2 years ago

5

Mrs. Melanie Lazo pays Php 15.75 for each hair clip to its supplier. She decided to adds markup of Php 3.15. What is the markup

rate?

1 answer:

malfutka [58]2 years ago

8 0

Answer:

the answer to the problem is 20.8%

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Elodia [21]

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3 years ago

88) 4 times a number decreased by 8 equals 40<br> A) x=80 B) x = 40 C) x=8<br> D) x = 12

dimulka [17.4K]

D=12
Because if you write down the equation 4x-8=40 and plug in 12. 4 times 12 is 48
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2 years ago

3m/2/3=7 pleasee helpp

snow_tiger [21]

Answer:

14

Step-by-step explanation:

3 times 14 equals 42, and 42 divided by 2 is 21. 21 divided by 3 is 7. :)

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2 years ago

Find an equation of the plane consisting of all points that are equidistant from (-3, 5, -4) and (-5, 0, 4), and having -2 as th

Firdavs [7]

Answer:

-2x-5y+8z+4.5=0

Step-by-step explanation:

Let (x,y,z) be the coordinates of the point lying on the needed plane. This point is equidistant from the points (-3, 5, -4) and (-5, 0, 4), so

$d_1=\sqrt{(x-(-3))^2+(y-5)^2+(z-(-4))^2}=\sqrt{(x+3)^2+(y-5)^2+(z+4)^2}\\ \\d_2=\sqrt{(x-(-5))^2+(y-0)^2+(z-4)^2}=\sqrt{(x+5)^2+y^2+(z-4)^2}\\ \\d_1=d_2\Rightarrow \sqrt{(x+3)^2+(y-5)^2+(z+4)^2}=\sqrt{(x+5)^2+y^2+(z-4)^2}\\ \\(x+3)^2+(y-5)^2+(z+4)^2=(x+5)^2+y^2+(z-4)^2\\ \\x^2+6x+9+y^2-10y+25+z^2+8z+16=x^2+10x+25+y^2+z^2-8z+16\\ \\-4x-10y+16z+9=0\\ \\-2x-5y+8z+4.5=0$

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2 years ago

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2 years ago