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Rzqust [24]
4 years ago
5

What is the percent of decrease on an item that went from $25 to $20? 20% 25% 80%

Mathematics
2 answers:
AleksAgata [21]4 years ago
5 0
To work out percentage decrease:

You get the highest/biggest number ($25) , and the difference between the two ($5)
You divide the two, 25 / 5 = 5
100% / 5 = 20%

The decrease is 20%


Softa [21]4 years ago
4 0

Answer:

20

Step-by-step explanation:

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A farmer knows that a grocery store will reject a shipment of his vegetables if more than 4% of the vegetables contain blemishes
kykrilka [37]

Answer:

Assumption A is violated

Step-by-step explanation:

x = number of blemishes = 8

n = sample size = 150

proportion = x/n = 8/150 = 0.0533

1. large counts: np> 10

= 150 * 0.0533 >10

= 7.995 > 10

this assumpton is obviously violated. <em><u>7.995 is not greater than 10</u></em>

<em><u></u></em>

2. Large Counts: n(1 - p) > 10

150(1-0.0533)>10

150-7.995 > 10

142.005> 10

there is no violation. The assumption is satisfied

3. This assumption is satisfied. this is because the tomatoes were selected using simple random sampling.

4. 10% of the population = 0.1 * 2000 = 200

the sample size = 150

150 < 200

this assumption is satisfied

<em><u></u></em>

<em><u> </u></em>

<em><u></u></em>

3 0
3 years ago
Otis constructed a rectangle with a compass and straightedge.
trapecia [35]
<span>B. square
</span><span>C. Draw arcs on the circle with the compass set at r units.

</span>
6 0
4 years ago
Which equation can be used to find the perimeter of a regular octagon with sides of length 12?
USPshnik [31]
Octagans have 8 sides.
Perimeter is thought of as the length a piece of string would be if it was layed around the edges of the shape.
There are 8 sides, each 12units in length.
Perimeter=8*12=96units
7 0
3 years ago
Write an equation for the vertical line that contains point E(-12, 7). Is anybody able to help?
BigorU [14]

Answer:

x = -12

Step-by-step explanation:

Vertical lines take the form of x = something and horizontal lines take the form of y = something

Why is this? Notice that whenever you make a horizontal line on a graph and select virtually any point that's on that line, all of the points you pick will have the same y value. Try to imagine the same thing with a vertical line, are the results the same?

So the line x = -12 (we got -12 from the coordinate that was given to us on the question prompt) is a vertical line that passes through virtually all possible y values (from positive infinity to negative infinity, or vice-versa) which means that the question prompt having given us the y value was negligible.

Good luck!

5 0
3 years ago
3x +12 =90 what is x
castortr0y [4]

Answer:

x=26

Step-by-step explanation:

3x +12 =90

subtract 12 from each side

3x=78

divide 3 from each side

x=26

3 0
3 years ago
Read 2 more answers
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