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ad-work [718]
3 years ago
10

Can anyone help me with this problem

Mathematics
1 answer:
Anit [1.1K]3 years ago
8 0
I hope this helps you

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Calculate the percentage change (increase or decease) that occurs when:
SashulF [63]

The first step is to find the CHANGE. This is done by subtracting the two values and taking the absolute value. Next step is to find the ratio of the change to the original and multiplying by 100% to make it a percentage.

So;

a)  change = Ι60 - 25Ι = 35.

     ratio of change to original = 35:25,

    multiplying by 100% will give 35/25 × 100% = 140%.

    Hence it is a 140% INCREASE.

b) change = | 30 - 66 | = 36

    the ratio is 36:66

multiplying by 100% = 36/66 × 100% = 0.545454... ×100% ≈ 54.5%

   Hence it is a 54.5% DECREASE.


Helpful?

     



4 0
3 years ago
Tricia completed the square of the quadratic function f(x)=x^2+14x+2 and determined the coordinates of the minimum value are (-7
eduard
To complete the square you halve the coefficient of the x term and square it. Half of 14 is 7 and 7² is 49. So we add 49 and subtract 49, which means we are not changing the value of the quadratic. So we have x²+14x+49-49+2. This can be written: (x²+14x+49)-49+2, which is (x+7)²-47, which is answer a.
8 0
3 years ago
What is the difference between a subset and a proper subset?
muminat

Answer:

A subset is when all of the elements in the subset are in the actual set. A proper subset is a subset which the actual set has at least on more element than the proper subset.

Step-by-step explanation:

For example, Set A, {1,2,3} is a subset of B {1,2,3}. But Set C, {1,2} is a proper subset of B. Set {5,8} is a subset of {2,5,8}.

6 0
3 years ago
Which of these quadrilaterals have opposite sides that are parallel? Name these quadrilateral
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Answer:

square,rectangle,rhombus,paralellagram

Step-by-step explanation:

4 0
2 years ago
The width of a swimming pool is 12 feet less than the pool's length. The area of the pool is 540 square feet. What are the dimen
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100ft long and 42 wide
8 0
3 years ago
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