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padilas [110]
3 years ago
15

-5=n/2 I need help because I'm just a dumb kid

Mathematics
2 answers:
Andrei [34K]3 years ago
8 0
To isolate the n, you would multiply both sides of the equation by 2 which would give you -10=n
Elanso [62]3 years ago
4 0

To solve this equation, we need to get the variable n alone on the right side of the equation. To do this, we need to get rid of the denominator on this variable. To get rid of the denominator, we must multiply both sides by 2, because multiplication is the inverse operation of division (which is being used to create the denominator).

-5 = n/2

-5 * 2 = n/2 * 2

-10 = n

Therefore, your answer is that n = -10.

If you ever want to check and make sure your answer is correct, you can plug this value back into the original equation. -5 = -10/2, which is a true statement, so we know our answer is correct.

Hope this helps!

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People were asked how many children are in their family. The results are shown below. How many people were surveyed?
Lorico [155]

Answer:

19 people were surveyed

Step-by-step explanation:

0 children = 3

1 child = 4

2 children = 5

3 children = 5

4 children = 2

3 + 4 = 7 + 10 = 17 + 2 = 19

5 0
3 years ago
A survey organization, as part of the United States Census Bureau, conducts a yearly census similar to the one taken every ten y
lyudmila [28]

Answer: $69811

Step-by-step explanation:

Given : A survey organization, as part of the United States Census Bureau, conducts a yearly census similar to the one taken every ten years, but with a smaller percentage of participants.

One of these surveys estimates with 90% confidence that the mean household income in the U.S. falls between $69,702 and $69,920.  (1)

We know that the confidence interval is given by :-

Point estimate of mean  ± Margin of error

From (1) , we have

Point estimate for mean  -Margin of error = $69,702   (2)

Point estimate for mean  +Margin of error = $69,920      (3)

Add (2) and (3), we get

2 (Point estimate for mean) = $139622

Divide both sides by 2, we get

Point estimate for mean=$ 69811

Therefore , the point estimate for mean U.S. household income. =  $ 69811

6 0
3 years ago
14. Evaluate the expression.<br> 4!<br> 24<br> 28<br> 20
xxMikexx [17]

Answer:

24.

Step-by-step explanation:

By definition,  factorial 4

= 4!

= 4*3*2*1

= 24.

7 0
3 years ago
Read 2 more answers
60 − (7 + 4) × 5 what is the answer
hichkok12 [17]

Answer:

5

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer. Smitha answered all
Ymorist [56]

Answer:

15 answers

Step-by-step explanation:

To solve this question we need to set up an equation.

Let's name the number of incorrect answers x.

<u>We can set up an equation that's essentially:</u>

(Points for correct answer)*(number of correct answers)+(points for incorrect answer)*(number of incorrect answers)=final score

When we plug in our numbers and variables it looks like this:

5(3)+(-2x)=-15

Simplify

15-2x=-15

Subtract 15 from both sides

-2x=-30

Divide both sides by -2

x=15

This means Smitha attempted 15 wrong answers, and that there were 18 questions in total.

6 0
2 years ago
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