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dem82 [27]
3 years ago
8

► Find the percent change and tell whether it is a percent increase or a

Mathematics
1 answer:
Jlenok [28]3 years ago
7 0

Answer:

1 Original amount: 20

End amount: 15

<h3>(20 - 15)/20 x 100 = (5/20) x 100 = 25% decrease</h3>

2 Original amount: 30

End amount: 45

<h3>(45 - 30)/30 x 100 = (15/30) x 100 = 50% increase </h3>

3 Original amount: 625

End amount: 550

<h3>550/625 =550 ÷ 625 =0.88</h3><h3>0.88 =0.88 × 100/100 =(0.88 × 100)/100 =88/100 =88% decrease</h3>

4 Original amount: 320

End amount: 112

<h3>(112-320):320x100 =</h3><h3>100 =(112:320-1)x100 =</h3><h3>100 =35-100 = -65% decrease</h3>

5 Original amount: 165

End amount: 222.75

<h3>165/222.75 =165 ÷ 222.75 ≈0.740740740740741</h3><h3>0.740740740740741 =0.740740740740741 × 100/100 =(0.740740740740741 × 100)/100 ≈74.074074074074/100 =74.074074074074% ≈74.07% Increase </h3>

6 Original amount: 326

End amount: 423.80

<h3>(423.8-326):326x100 =</h3><h3>100 =(423.8:326-1)x100 =</h3><h3>100 =130-100 = 30% Increase </h3>

7 Original amount: 27

End amount: 38.61

<h3>(38.61-27):27x100 =</h3><h3>100 =(38.61:27-1)x100 =</h3><h3>100 =143-100 = 43% Increase</h3>

8 Original amount: 60

End amount: 70.02

<h3>(70.02-60):60x100 =</h3><h3>100 =(70.02:60-1)x100 =</h3><h3>100 =116.7-100 = 16.7% Increase</h3>

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Eight times the sum of a number and 4 equals 3
BigorU [14]

The algebraic expression is:8(x+4)=3

And Value of x is: x=\frac{-21}{8}

Step-by-step explanation:

We need to write the expression of the statement:

Eight times the sum of a number and 4 equals 3

Let the number = x

The expression will be:

8(x+4)=3

Solving the expression to find value of x:

8(x+4)=3\\8x+24=3\\Adding\,\,-24\,\,on\,\,both\,\,sides:\\8x+24-24=3-24\\8x=-21\\x=\frac{-21}{8}

So, The algebraic expression is:8(x+4)=3

And Value of x is: x=\frac{-21}{8}

Keywords: Algebraic Expression

Learn more about Algebraic Expression at:

  • brainly.com/question/1600376
  • brainly.com/question/1617787
  • brainly.com/question/9720317

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3 years ago
PLEASE HELP QUICK WILL MARK BRAINLIEST
ser-zykov [4K]

Answer:

in my knowledge I think 13

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7 0
2 years ago
If she saves 1$ the first week 3$ the season week 9$ the third week how much will she save in 5 weeks
ycow [4]

Based on the numbers we have we can assume that she saves 3 times more each week than the last (1*3=3, 3*3=9).

Following this trend we would multiply the amount she saved the third week ($9) by 3 to get $27 for the fourth week.

Then, we would multiply the amount she saved the fourth week ($27) by 3 to get $81 for the fifth week.

Finally, to figure out how much she saved in the 5 weeks, we need to add each value up to get 1+3+9+27+81= $121 saved in 5 weeks

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3 years ago
Which equation represents the transformed function below?
Marta_Voda [28]

If we know the concepts of transformations and <em>horizontal</em> translation and that f(x) = √x and k = - 2, then the <em>transformed</em> function is g(x) = √(x + 2).

<h3>How to determine the transformed function in terms of its parent function</h3>

The transformation of functions are operations which modify the relationship between input and outputs in a function. The <em>parent</em> function represents a <em>canonical square root</em> function and the <em>transformed</em> function is the consequence of applying a <em>horizontal</em> translation.

This kind of transformation is defined by the following expression:

g(x) = f(x - k)     (1)

Where k represents a <em>rightward</em> translation for k > 0.

If we know that f(x) = √x and k = - 2, then the <em>transformed</em> function is g(x) = √(x + 2).

To learn more on transformations: brainly.com/question/11709244

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The answer to your question is -16/3
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