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guajiro [1.7K]
3 years ago
13

What is the result when the number 15 is decreased by 20%?

Mathematics
1 answer:
Lana71 [14]3 years ago
7 0

Answer: 12

Step-by-step explanation:

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A store selling school supplies advertises a bundle deal. The consumer can pick a backpack, a binder, a pack of pencils, and not
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There are 1365 possible combinations to this bundle deal :)
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3 years ago
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A book has a front and a back and 400 pages. The front and back cover are each 0.9mm thick measured to 1 decimal place. Each pag
oksano4ka [1.4K]

Answer:

The answer is actually 5.17 centimeters

Step-by-step explanation:

The question is asking you to calculate the minimum thickness so you have to find the lowest bounds.

The covers are 0.9 mm to 1 d.p so the minimum thickness is 0.85 because that is the lowest bound.

The pages are 0.13 mm to 2 d.p so the minimum thickness is 0.125 as that is the lowest bound.

0.85  x 2 = 1.7 and 0.125 x 400 = 50

50 + 1.7 = 51.7 which is the minimum length.

5 0
3 years ago
An employee at an organic food store is assembling gift baskets for a display. Using wicker baskets, the employee assembled 2 sm
Bingel [31]

Let \: x,  y \: (x,y>0) \: be \: the \: number \: of \: fruits \: the \: small \: and \: large \: baskets \: hold \: respectively \\ We  \: have \:  a \:  system \:  of \:  equations:2x + 4y = 60 \: \wedge \: 2x + 10y = 132 \\ \Leftrightarrow x = 6 \: \wedge \: y = 12 \\ \Rightarrow The  \: small \:  baskets  \: each \:  include  \: 6  \: fruits \\ \Rightarrow The  \: large \: baskets \: each \: include \: 12 \: fruits

5 0
3 years ago
Find the vertices and foci of the hyperbola with equation quantity x plus 5 squared divided by 36 minus the quantity of y plus 1
Sphinxa [80]

Answer:

Vertices: (1,-1), (-11, -1); Foci: (-15, -1), (5, -1)

Step-by-step explanation:

Center at (-5,-1) because of the plus 5 added to the x and the plus 1 added to the y.

a(squared)=36 which means a=6 and a=distance from center to vertices so add and subtract 6 from the x coordinate since this is a horizontal hyperbola, which is (1,-1), (-11,-1). From there you dont need to find the focus since there is only one option for this;

Vertices: (1,-1), (-11, -1); Foci: (-15, -1), (5, -1)

8 0
3 years ago
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Solve for x: (4x + 15) = 24
Goshia [24]

Answer:

x=9/4

Step-by-step explanation:

we have:

(4x + 15) = 24

4x=24-15

4x=9

finally: x=9/4

3 0
3 years ago
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