Since 158 minus 113 is 45, Manny only has to read 45 pages. If Manny reads nine pages a day, you have to divide 45 by 9, which leaves you with 5. It will take Manny 5 days to finish the book.
Answer:
I am not college teacher to clear your doubts iam a girl please send your number ok na let's we have friends
Answer:
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Step-by-step explanation:
One hundred and thirty-nine thousand, eight hundred and fifty-two. ;) Hope that helped
The mean grade on the quiz was 88.
<u>Step-by-step explanation:</u>
We need to find the mean grade of the quiz using the information given.
The mean also known as the average is defined as the sum of data entries in a set divided by the number of entries in the data set.
The standard deviation gives the amount of variation or dispersion of data values present in a data set.
The given data are,
- The standard deviation of the quiz, SD = 3.
- The score 94 is exactly 2 standard deviations above the mean.
The above sentence represents that 94 is above the mean with 2 standard deviations.
⇒ 94 = Mean + 2 standard deviations.
We know the value for standard deviation. So substitute SD= 3 in the expression provided.
⇒ 94 = Mean + (2×3)
⇒ 94 = Mean + 6
To find mean, subtract 6 on both sides.
⇒ 94 -6 = Mean
⇒ Mean = 88
Therefore, the mean grade on the quiz was 88.
