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Dimas [21]
3 years ago
11

a geography test has 6 questions worth 3 marks each and 16 questions worth 2 marks each. write an algebraic expression for each

situation
Mathematics
1 answer:
Verdich [7]3 years ago
4 0
(6 x 3) + (16 x 2)
You can use PEMDAS to break it down if you would like
1 question is worth 3 marks each and 1 question is worth 2 marks each
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A jar has 20 marbles: 3 green, 12 blue, 5 red.
nadezda [96]

Probability is defined as the <u>likelihood or the certainty</u> that an event is going to<u> occur or happen.</u>

The probability of randomly choosing a red and then a green marble is 3/76.

The total number of marbles = 20

The number of green marbles= 3

The number of blue marbles = 12

The number of red marbles = 5

<u>The probability of choosing a red marble</u> = Number of red marbles / Total number of marbles

= 5/20

<u>In simplest fraction form</u> = \frac{1}{4}

We are told in the question that you keep the red marble you choose, So this means the <u>total number of marbles</u> left reduces to 19

<u>The probability of choosing a green marble is</u> =  Number of green marbles / New total number of marbles

= 3/19

Therefore, <u><em>the probability of randomly choosing a red and then a green marble is </em></u>

P (Red) x P(Green)

= 1/4  x 3/19

= 3/76

To learn more, visit the link below:

brainly.com/question/22563776

4 0
2 years ago
Leonard is studying the relationship between the fuel efficiency in miles per gallon (mpg), y, and the speed in miles per hour (
Nataliya [291]

Answer:

D. There is a nonlinear relationship between the speed and fuel efficiency.  

Step-by-step explanation:

A desirable residual plot should show a horizontal band with points randomly distributed about the horizontal axis.

Leonard's plot is definitely nonlinear.

The residuals show a good fit to a parabola.

This suggests that the relation between speed and fuel efficiency may be parabolic.

 

8 0
3 years ago
On a survey eight students reported how many minutes it takes them to travel to school here are there responses 9, 11, 3, 14, 14
Triss [41]

Hi!

The answer to your question is 9.75 minutes

Here is the math to prove it:

9+11+3+14+14+7+14+6=78

Now you will take 78 and divide it by 8

This is because when finding the mean you add all of the given number together and then divide them by the amount of number added together.

78/8=9.75

Thus, your answer is 9.75 minutes

I hope this helped!

Have a wonderful day/night!

God bless!

8 0
2 years ago
Math mafff math maff
Blizzard [7]

Answer:

Figure A

Step-by-step explanation:

It just moves position and nothing else it does´t rotate or anything.

Definition of translation in math is: In Geometry, "Translation" simply means Moving ... ... without rotating, resizing or anything else, just moving.

Hopefully that is helpful to you. Have a wonderful day.

8 0
3 years ago
Read 2 more answers
Find the missing measures
Yanka [14]
The middle right is 145-90, so 55°. I'm not sure about the others
7 0
3 years ago
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