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kolezko [41]
3 years ago
11

5 − c = –11 c = ? What is C? Please help! I'll give brainliest

Mathematics
2 answers:
solmaris [256]3 years ago
6 0

Answer:

-6

Step-by-step explanation:

5+-11= -6

5--6= -11

Calculator

jonny [76]3 years ago
4 0

Answer:

16

Step-by-step explanation:

you would get c alone so you subtract 5 to the other side

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Four times the sum of a number and 15 is at least 120. Find all possible solutions for x
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First translate the English phrase "Four times the sum of a number and 15 is at least 120" into a mathematical inequality.

"Four times..." means we're multiplying something by 4.

"... the sum of a number and 15..." means we're adding an unknown and 15 and then multiplying the result by 4.

"... is at least 120" means when we substitute the unknown for a value, in order for that value to be in the solution set, it can only be less than or equal to 120.

So, the resulting inequality is 4(x + 15) ≤ 120.

Simplify the inequality.

4(x + 15) ≤ 120
4x + 60 ≤ 120 <-- Using the distributive property
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Now that we have the inequality in a simplified form, we can easily see that in order to be in the solution set, the variable x can be no bigger than 15.

In interval notation it would look something like this:

[15, ∞)

In set builder notation it would look something like this:

{x | x ∈ R, x ≤ 15}

It is read as "the set of all x, such that x is a member of the real numbers and x is less than or equal to 15".
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Simplify the expression: 5 x t x 5
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Answer:

Step-by-step explanation:

In No.1

First you find the total number of girls which is 56-20 =36 girls in total

So to get number of boys who watched tennis 20-13=7 boys watched tennis

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Then add o get the totals

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First you get the total number of male 80-47=33 males

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Next you find the number of females doing chemistry by 47-(18 + 14)=15 females

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2

No. 2 (b)

Because there is a high number of students doing physics and most of them are female

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3 years ago
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