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goldfiish [28.3K]
2 years ago
11

A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is

the number of 3-point questions and y is the number of 5-point questions, the system shown represents this situation. x + y = 24 3x + 5y = 100 What does the solution of this system indicate about the questions on the test? The test contains 4 three-point questions and 20 five-point questions. The test contains 10 three-point questions and 14 five-point questions. The test contains 14 three-point questions and 10 five-point questions. The test contains 20 three-point questions and 8 five-point questions.
Mathematics
2 answers:
dezoksy [38]2 years ago
8 0
The answer is the test contains 10 3pt questions and 14 5 pt questions. Any questions please just ask!!! thank you!
denis-greek [22]2 years ago
3 0

the answer is the test contains 10 3pt questions and 14 5 pt questions. Any questions please just ask!!! thank you!

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A basketball player that shoots 80% from the free throw line attempts two free throws. The notation for conditional probability
taurus [48]

Answer:

P(made 2nd attempt|made 1st attempt)=P(made 2nd attempt)

Step-by-step explanation:

Here given that a basketball player that shoots 80% from the free throw line attempts two free throws.

If x is the no of shoots he makes (say) then we find that each throw is independent of the other.

In other words, because he made successful first attempt, his chances for second attempt will not change

Prob for success in each attempt remains the same as 0.80

Hence I throw is independent of II throw.

When A and B are independent,then we have

P(A/B) = P(A)

Hence answer is

P(made 2nd attempt|made 1st attempt)=P(made 2nd attempt)


8 0
2 years ago
Which number has the greatest absolute value? <br> a. 0 <br> b. 10 <br> c. –10 <br> d. –20?
Triss [41]
Keep in mind, absolute values are always positive, even when they say negative.That is because the absolute value of a number is just the distance that number is from 0. Example : -5 and 5...they are both 5 spaces from 0...doesn't matter if it is negative or positive, it is still 5 spaces.

|0| = 0
|10| = 10
|-10| = 10
|-20| = 20

so ur answer is : | -20 |

6 0
2 years ago
What is the circumference of this circle, in millimeters? use 22/7 for pi<br><br> r = 49
ICE Princess25 [194]
Circumference=2\pi r=2\times \dfrac{22}{7} \times 49 = \boxed{308 \text{ mm}}
7 0
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