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Irina-Kira [14]
3 years ago
11

There are 120 students in the seventh grade. Seventy percent of these students are involved in extracurricular activites. How ma

ny seventh grade students are not involved in an extracurricular
Mathematics
2 answers:
Tanzania [10]3 years ago
6 0

First, turn 70% into a decimal by dividing 70 by 100.

70% ⇒ 0.70

Multiply 120 by 0.70.

120 × 0.70 = 84

Now we know that 84 students are involved in extracurricular activities. Subtract 84 from 120 to find the amount of students who are <em>not</em> involved in extracurricular activities.

120 - 84 = 36

<h2>Answer:</h2>

<u>36 seventh grade students are not involved in extracurricular activities.</u>

garik1379 [7]3 years ago
3 0

Answer:

36

Step-by-step explanation:

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Answer:

There are 364 ways of filling the offices.

Step-by-step explanation:

In this case, the order of filling of the offices does not matter, so, we can figure out the different ways of filling the offices by using the combination formula:

C^{n} _{r}=\frac{n!}{(n-r)!r!}

where n=14 (number of members)

r=3 number of offices

n!=n·(n-1)·(n-2)·...·3·2·1

C^{14} _{3}=\frac{14!}{(14-3)!3!}=\frac{14*13*12*11*10*9*8*7*6*5*4*3*2*1}{(11*10*9*8*7*6*5*4*3*2*1)*(3*2*1)}=\frac{14*13*12}{3*2*1} =364

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kirza4 [7]
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2 years ago
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antiseptic1488 [7]
For determining the correct degree of a polynomial, you need to look at each term and find the degree by adding the exponents of each variable in it. The largest degree is the degree of the polynomial.

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Which is the solution to 5^x=8^x-7
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Answer:

C) 30.9702

Step-by-step explanation:

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Rewrite it using the laws of log:

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x / (x - 7)  =  ln 8 / ln 5

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