Sam scored 43, 48, and 42 points on three tests. How many points should he get on the fourth test to get an average score of 50?
(1 point) 83 points 67 points 45.75 points 44.33 points
2 answers:
So we know that an average is the sum of the scores divided by the number of scores that were added together. In this case we are going to be dealing with 4 tests. So let's say x is the score for our fourth test. We can create this equation:
So then we need to simplify the top:
Then multiply by 4 on both sides to get rid of the denominator:
Then solve for x:
So now we know that Sam needs to score a 67 on the fourth test to have an average score of 50.
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Answer:
a
Yes
b
c
d
Step-by-step explanation:
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Two fair dice, one green and one red were rolled
Generally the outcomes on the dice independent because the outcome on the first dice is not affected by the second die
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the probability of getting a 5 on a dice rolled is
Generally the probability of P(1 on green die and 5 on red die) is mathematically represented as
Generally the probability of P(5 on green die and 1 on red die) is mathematically represented as
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