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Dmitry [639]
3 years ago
7

Patrick, Paulo, and Joseph divided 68 oranges. Patrick got two oranges less than Paulo and Paulo got twice as much as Joseph. Ho

w many oranges did Joseph get?
Mathematics
1 answer:
Tatiana [17]3 years ago
3 0
Let's say patrick=a, paulo=b and joseph=c:

(1) a+b+c=68
(2) a+2=b
(3) b=2c

substituting (2) in (1) gives:

(4) 2a + c = 66 => a = 33 - c/2

(3) in (2) gives:

(5) a+2=2c

(4) in (5):

33 - c/2 + 2 = 2c => 35 = 2.5c => c=14

Joseph got 14 oranges!


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What equation has slope of 3 and passes through 0,-2
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y = 3x - 2

Step-by-step explanation:

<em>use y = mx + b</em>

y = -2

x = 0

m (slope) = 3

b (y-intercept) = -2, <em><u>since the point (0,-2) passes through the y a</u></em>xis.

<em>put is as slope-intercept form:</em>

y = 3x - 2

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Step-by-step explanation:

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Evaluate v(x)=12-2x-5 when x=-2,0, and 5 .<br><br> v(-2)= <br><br> v(0)= <br><br> v(5)=
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=12+4-5

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The volume of the pyramid shown in the figure is cubic centimeters. If the slant height of the pyramid increases by 4 centimeter
Nostrana [21]

Answer:

Part a) The volume of the original pyramid is 15\ cm^{3}

Part b) The volume of the pyramid increases by  6\ cm^{3}

Step-by-step explanation:

<u><em>The complete question is</em></u>

Part 1) The volume of the pyramid shown in the figure is 9,15,21, or 63 cubic centimeters?. Part 2) If the slant height of the pyramid increases by 4 centimeters and its height increases by 2 centimeters, the volume of the pyramid increases by 6,9,12 or 21 cubic centimeters?

we know that

The volume of the pyramid is equal to

V=\frac{1}{3}Bh

where

B is the area of the base

h is the height of pyramid

see the attached figure to better understand the problem

Step 1

Find the volume of the original pyramid

the area of the base B is equal to

B=3^{2}=9\ cm^{2}\\h=5\ cm

substitute

V=\frac{1}{3}(9)(5)=15\ cm^{3}

Step 2

Find the volume of the new pyramid

B=9\ cm^{2} -------> the area of the base is the same

h=5+2=7\ cm ------> the height increase by

substitute

V=\frac{1}{3}(9)(7)=21\ cm^{3}

Subtract the original volume from the new volume

21\ cm^{3}-15\ cm^{3}=6\ cm^{3}

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3 years ago
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