-1 2/3 + 3 1/2 as a mixed number

Mathematics

2 answers:

balu736 [363]3 years ago

8 0

1 83/100 because 3-1=2

Harrizon [31]3 years ago

7 0

3 1/6
-1 2/3 + 3 1/2
You add the base numbers first, -1 + 3 to get 2.
Then you add the fraction part of the number: 2/3 + 1/2
You find a common denominator, it's 6.
How do you get 2/3 with a denominator of 6? You multiply 3x2, to get six. what you do to the bottom of the fraction you do to the top. So you multiply both parts by 2.
2x2/3x2= 4/6
You do the same for the other fraction:How do you get the denominator to 6? You multiply by 3.
1x3/2x3= 3/6
Then you add the two new fractions together:
4/6+3/6=7/6 which is simplified into a mixed number as 1 1/6
Since we have another base number you add it to the previous base number we got when we added the mixed numbers. -1 and 3 to get 2. So you add the old base number of 2, to the new base number of 1 to get 3. Then you just put the fraction next to it to get your answer:
3 1/6
Hope it helps.

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Answer:

171 newspapers.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

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$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

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