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4 years ago

180,000 to 165,000 what is the percent decrease

Mathematics

1 answer:

Margarita [4]4 years ago

3 0

Answer:

Step-by-step explanation:

%decrease is given by = decrease/actual value ×100

Then in this case

The value decrease from 180,000 to 165,000

Then, the decrease is 180,000-165000=15,000

The actual value was 180,000

Then %decrease = decrease/ actual value × 100

%decrease= 15,000/180,000×100

%decrease=8.33%

Decrease = 8.33%

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Three classes of school children are selling tickets to the school play. The number of tickets sold by these classes, and the nu

Westkost [7]

Answer:

The expression for the average number of tickets sold per school child is:

$M = \frac{tickets*class1 + tickets2*class2 + tickets3*class3}{class1 + class2 + class3}$

Step-by-step explanation:

The average number of tickets sold per school child is the weighted mean calculus between the number of tickets sold by these classes and the number of children in each classes.

This is the multiplication between the number of tickets sold by these classes and the number of children in each classes divided by the total weight(in this exercise, the total weight is the total number of school child).

So, the expression for the average number of tickets sold per school child is:

$M = \frac{tickets*class1 + tickets2*class2 + tickets3*class3}{class1 + class2 + class3}$

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3 years ago

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3 years ago

What is the vertex of the graph of this equation y=2x^2+8x-24

sdas [7]

Answer:

The vertex would be D) (-2, -32)

Step-by-step explanation:

To find the vertex , start by find the x-value. For this we can use the equation below.

x = -b/2a

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x = -b/2a

x = -(8)/2(2)

x = -8/4

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Now that we have x, we find y by plugging -2 in for each x.

y = 2x^2 + 8x - 24

y = 2(-2)^2 + 8(-2) - 24

y = 2(4) - 16 - 24

y = 8 - 16 - 24

y = -32

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dimaraw [331]

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Step-by-step explanation:

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never

seen

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pretty

bestfriends

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3 years ago