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Anarel [89]
3 years ago
8

In a group of 25 students at lunch, 10 prefer ketchup on their hamburger, 10 prefer mustard on

Mathematics
1 answer:
Alex3 years ago
6 0

Answer:

15/25 or 3/5 or 60%

Step-by-step explanation:

P(K or M) = P(K) + P(M) - P(K and M)

               = \frac{10}{25} + \frac{10}{25} - \frac{5}{25}

               = \frac{15}{25}

               = .6 or 60%

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The center on a target has a diameter of 5 inches. The whole target has a diameter of 25 inches. Complete the explanation for wh
kicyunya [14]

Answer:

The center is \frac{1}{25} of the whole target.

Step-by-step explanation:

Given:

Diameter of the center = 5 inches

Diameter of the whole target = 25 inches

We need to find the part of the center to the whole target.

Solution,

Firstly we will find out the areas of center and whole target.

For center;

Diameter = 5 in

Radius of circle is equal to half of the diameter.

radius = \frac{diameter}{2}=\frac{5}{2}=2.5\ in

Now we know that the area of circle is equal to π times square of the radius.

framing in equation form, we get;

Area = \pi \times{2.5}^2

For whole target;

Diameter = 25 in

Radius of circle is equal to half of the diameter.

radius = \frac{diameter}{2}=\frac{25}{2}=12.5\ in

Now we know that the area of circle is equal to π times square of the radius.

framing in equation form, we get;

Area = \pi \times12.5^2

Now to find the part of the center to the whole target we will divide Area of center with Area of the target.

framing in equation form we get;

the part of the center to the whole target = \frac{\pi \times2.5^2}{\pi \times12.5^2}= \frac{6.25}{156.25} = \frac{1}{25}

Hence the center is \frac{1}{25} of the whole target.

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3 years ago
Nina's monthly budget is $2,250. Every month she makes the following payments:
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8 0
4 years ago
Read 2 more answers
Find the value of x
AfilCa [17]
The answer is X = 12.
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2 years ago
What is 6/5 divided by 4/3
Anna007 [38]

Answer:

9/10

Step-by-step explanation:

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3 years ago
I go to school on the 4th of June Monday and i summer term is on 29th June i have 3 days a week at school Monday Tuesday Wednesd
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11 school days are left.

In the attached picture of a calendar, I marked the days the person has left. There are 11.

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