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Likurg_2 [28]
3 years ago
5

The sum of six times a number and nine is equal to the difference of the number and eleven. Find the number. Round your answer t

o the nearest integer, if necessary.
Mathematics
2 answers:
Sladkaya [172]3 years ago
7 0

Suppose the number in this case to be n.

According to the statement given, six times of number would be 6n

and

the sum of 6 times the number (6n) and nine would be ---> 6n + 9

is equal to the difference of the number (6n) and eleven ---> n - 11.

So, the final equation becomes:

6n + 9 = n - 11

Solving this, place both the values of n on one side and the numbers on the other side but do not forget to change the sign of the value that you change the side of.

6n - n = -11 -9 (here we changed the signs of positive n to -n and positive 9 to -9 because we changed their sides)

5n = -20

n = -20/5

n = -4

storchak [24]3 years ago
3 0

the equation would be 6*n+9=n-11

the answer is -4

i think

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Answer:

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Step-by-step explanation:

Let the number of magazines = m

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<u>Given the following data;</u>

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SAT verbal scores are normally distributed with a mean of 433 and a standard deviation of 90. Use the Empirical Rule to determin
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34% of the scores lie between 433 and 523.

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<u>Empirical rule to determine the percent:</u>

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(2) About 95% of all the values lie within 2 standard deviations of the mean.

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