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Galina-37 [17]
4 years ago
12

You spin the spinner shown below once. Each sector shown has an equal area.

Mathematics
2 answers:
9966 [12]4 years ago
6 0

Answer:

P(beaver) = 0.33

Step-by-step explanation:

Spinner shown in the figure has 3 sections otter, turtle, beaver.

We have to find the probability P(beaver) in a single spin.

Total events n(S) = 3

and the favorable outcome in a single spin of spinner n(E) = 1

So as per rule of probability P(beaver) = \frac{n(E)}{n(S)}=\frac{1}{3}=0.33

Probability of getting beaver in one spin is 0.33

solmaris [256]4 years ago
5 0

Answer:

0.33.

Step-by-step explanation:

We have been given an image of spinner in which each sector has an equal area. We are asked to find the P(\text{beaver}).

Upon looking at our given spinner we can see that it has three sectors, so the total number of possible outcomes would be 3.

Since 1 sector represents beaver, therefore, number of favorable events is 1.

\text{Probability}=\frac{\text{Number of favorable outcomes}}{\text{Total number of possible events}}

\text{Probability}=\frac{1}{3}

\text{Probability}=0.333333\approx 0.33

Therefore, the P(\text{beaver}) is 0.33.

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Solve the problem below by writing and solving an equation. Be sure to define your variable. There are a total of 122 countries
valina [46]

Answer:

North America has 23 countries

Europe has 46 countries

Africa ha 53 countries

Step-by-step explanation:

Firstly to answer the question, we define variables. Let the number of countries in Africa be A, the number of countries in europe be E while the number of countries in North America be N.

Firstly, we are told there are a total number of 122 countries. Mathematically this means the addition of all the countries will give 122

Hence;

N + A + E = 122. •••••••(i)

Secondly we are made to know that Europe has twice as many countries as North America;

Mathematically l, this means

E = 2N. •••••••••(ii)

Thirdly we know that Africa has 7 more countries than Europe;

This mathematically means that

A = E + 7. •••••••••(iii)

Since E = 2N, A = 2N + 7 ••••••••(iv)

Now what to do to find the answer is to substitute equation ii and iv at the same time into equation i

This will give the following;

N + 2N + 2N + 7 = 122

5N = 122 - 7

5N = 115

N = 115/5

N = 23

We recall

E = 2N = 2(23) = 46

Also

A = 2N + 7 = 46 + 7 = 53

7 0
3 years ago
Read 2 more answers
Please help with this question (with explanation) thanks!​
skad [1K]
The reaction times form a straight line with gradient of 60/140 = 3/7 m/kph
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7 0
2 years ago
What are the solutions of the equation 4x2 3x = 24 – x? –3, 2, or 4 –3 or 2 –2, 3, or 4 –2 or 3
Sedbober [7]

Answer:

2 and - 3

Step-by-step explanation:

I've attached my work...

- 4 + 20 / 8 -> 16/8 = 2

- 4 - 20 / 8 -> -24/8 = -3

Please give me feedback on my repsomse by commenting,

any way i can improve showing my work?

Hope it helps, let me know if you have questions !

Have a nice rest of your day :)

5 0
2 years ago
Suppose the solution x=6 increases to x=9 and the left side of the equation stays the same. How would the right side need to cha
hoa [83]

Given that solution for some equation is x=6

Now they want to change x=6 into x=9.

Notice that all equations contans equal sign (=) because both side values are always same.

So if by any chance you want to change value of one side then you must change value on other side too

like we see that 6 changed to 9 by adding 3 on right side then we must add 3 on the left side too

so we get:

x=6

x+3=6+3

x+3=9

Now question says that the left side of the equation stays the same. That is possible only if we move +3 to the right side from the left side so we can write;

x=9-3


8 0
3 years ago
ANSWER QUICKLY PLEASE AND THANK YOU!!!
nydimaria [60]

Answer:

2,3

Step-by-step explanation:

6 0
3 years ago
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