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dexar [7]
3 years ago
10

a bag has 5red,3blue and 7green marbles. what is the probability of randomly selecting a blue marble from the bag?

Mathematics
1 answer:
pickupchik [31]3 years ago
5 0
Probability = yes/total
P(blue)=3/15= 1/5
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Find the slope of the line y<br> =2x + 3/7
kari74 [83]

Answer:2

Step-by-step explanation:

Number by x

3 0
3 years ago
4. Write the ratio 25c to R3,50 in its simplest form.​
suter [353]

Answers:

25c= 1/2

Then R3.50 is 3/50

Step-by-step explanations:

25c as a fraction is 25/50, so you have to simplify 25/50 to its simplest form , and you get the result of 1/2

For this you have to first  find the GCD (or HCF) of numerator and denominator. GCD of 3 and 50 is 1.

3 ÷ 150 ÷ 1.

Reduced fraction: 350. Therefore, 3/50 simplified to lowest terms is 3/50.

8 0
3 years ago
The value of y is directly proportional to the value of x. If y = 45 when x = 180, what is the
vaieri [72.5K]

Answer:

The  value of y when x = 90

         y = 22.5

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

The value of y is directly proportional to the value of x.

                        Y∝ X

                       y = k x

If y = 45 when x = 180

                    45 = k ( 180)

                    k = \frac{45}{180} = 0.25

<u><em>Step(ii):</em></u>-

The  value of y when x = 90

                  y = 0.25 × 90 = 22.5

                 y = 22.5

3 0
3 years ago
What is the measure of angle a
rewona [7]
Review the meaning of "straight angles."

Here 110 and A are "straight angles," and so 110 + A = 180   (degrees).

Then A = 70 degrees.
4 0
3 years ago
Read 2 more answers
Karen is investigating if age has any effect on political party preferences. What is the explanatory variable?
anastassius [24]

Using variable concepts, it is found that the explanatory variable is the age.

<h3>Explanatory and response variables:</h3>
  • The variables of an experiment are divided into explanatory and response.
  • The response variable is the one that is the focus of the study, that is, the one that can be changed.
  • The explanatory is the one that explains the reason of the change in the response variable.

In this problem, the <u>age can effect the political party preference</u>, hence:

  • The variable that is changed is the political party preference, hence it is the response variable.
  • The reason is the age, hence it is the explanatory variable.

You can learn more about explanatory and response variable at brainly.com/question/22046153

6 0
3 years ago
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