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To get a B in math Alexandria must average 80 on five tests Scores on the first four tests were 81 77 83 and 75 What is the lowest score that she can get on the last test and still get a B?
Wiki User
∙ 13y ago
(81 + 77 + 83 + 75 + X) divided by 5 = 80 average
316 + X = 400
X = 84
Wiki User
∙ 13y ago
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Where did Euclid of Alexandria study?
First of all, Euclid was from Athens, not from Alexandria. Second, he learned in Athens and he went to the Library at Alexandria to teach.Where can i find the source of this information?
Stacey's average score on three maths tests is 84 Her last two test scores were 79 and 93 What was her first test score?
Average of three test scores is 84 can be written (x+y+z)/3=84. If you know two of the scores then (79+93+z)/3=84, so to solve for z, 79+93+z=84*3 z=252-79-93 z=80 The first test score was 80
What is the median in the numbers 64 73 79 82 87 110?
The median is the middle score in a set of data which is organised ascending (lowest to highest). In your set of data, it appears that this has already been done, which takes care of the first step. Then we count up the number of scores that have been recorded. In your case, this would be six. Since this is an even number, we take the 3rd and 4th scores, and find the average of them. So in this case:64 73 79 82 87 11079+82 = 161161 / 2 =80.5Therefore 80.5 is our median.However, in a case where there is an odd number of scores, the middle number should be selected (i.e. when there is nine scores the fifth should be selected).
What is First Quartile in math terms?
The lowest 25% of values.
Bob's scores on his first 4 history tests were 55 85 58 and 77 To the nearest whole number what is the mean of these scores?
(55+85+58+77) / 4 = 69
What if your test grades are 83 94 86 and 91 what grade fo you need to earn on your next test to have an average of 90?
An average is worked out by dividing the total of the scores by the number of scores. You have 4 scores already so when you have done the next test it will be 5 scores. If you multiply 5 scores by 90 it gives you a total score of 450. The 4 scores you already have adds up to a total of 354. If you subtract 354 from the 450 you get 96 and that is your target for the final test. The average for the first 4 tests comes out at 88.5
Laura’s bowling five games. Her first four scores for 146, 135, 113, and 126. End up with an average score of at least 132.4, what is the lowest score of Laura will need in the fifth game?
423%2BS=600 Solve that to complete the problem. Let +x+ = her 5th score [ average of scores ] = [ total of scores] / [ number of games ] +120+=+%28+115+%2B+84+%2B+123+%2B+101+%2B+x+%29+%2F+5+ +600+=+115+%2B+84+%2B+123+%2B+101+%2B+x+ +600+=+423+%2B+x+ +x+=+600+-+423+ +x+=+177+ The lowest score Laura will need in the fifth game is 177
Where did Euclid of Alexandria study?
First of all, Euclid was from Athens, not from Alexandria. Second, he learned in Athens and he went to the Library at Alexandria to teach.Where can i find the source of this information?
When was the mosaics first made?
the alexandria mosaic
Where was the steam engine first invented?
Since the first recorded rudimentary steam engine being the AEOLIPILE described by Hero of Alexandria from Alexandria Egypt.
What was special about the library at Alexandria?
The Library at Alexandria was the first comprehensive collection of works from around the world at that time, and was the first library available to those people not of aristrocracy.
Stacey's average score on three maths tests is 84 Her last two test scores were 79 and 93 What was her first test score?
Average of three test scores is 84 can be written (x+y+z)/3=84. If you know two of the scores then (79+93+z)/3=84, so to solve for z, 79+93+z=84*3 z=252-79-93 z=80 The first test score was 80
Where was the site of the first National headquarters?
Alexandria, VA
The world's first library was located at .?
alexandria
Who was the first person to invent the windmill?
Heron of Alexandria
What is the average score for four bowlers if their scores are 132 140 145 and 128?
step 1: add all four scores 132 + 140 + 145 + 128 = 545 step 2: divide the total points of the four scores by the number of scores 545 divided by 4 = 136.25 136.25 is the average. The key to finding an average is to add all numbers together. Then dividing the answer by how how many sets of numbers there were to add. Example: Find the average of Cindy's test scores 75, 87, 72, 95, and 68. first add them together: 75 + 87 + 72 + 95 + 68 = 397 now divide the total by how many items there are: 397 divided by 5 = 79.4
What is the median in the numbers 64 73 79 82 87 110?
The median is the middle score in a set of data which is organised ascending (lowest to highest). In your set of data, it appears that this has already been done, which takes care of the first step. Then we count up the number of scores that have been recorded. In your case, this would be six. Since this is an even number, we take the 3rd and 4th scores, and find the average of them. So in this case:64 73 79 82 87 11079+82 = 161161 / 2 =80.5Therefore 80.5 is our median.However, in a case where there is an odd number of scores, the middle number should be selected (i.e. when there is nine scores the fifth should be selected).
