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Lena [83]
3 years ago
15

Pleased Help!! Need explained!

Mathematics
2 answers:
lakkis [162]3 years ago
8 0

Answer:

In question 1, n= 16

In question 2, n = -1

Step-by-step explanation:

Question 1:       -3n + 48 =0

Question 2:        -2n + 10 - 5n = 17

<u>To find n in Question 1</u>

-3n + 48 =0

3n = 48

n = 48/3

n = 16

<u>To find n in Question 2</u>

-2n + 10 - 5n = 17

-2n - 5n = 17 - 10

-7n = 7

n = 7/-7 = -1

n = -1

Therefor the value of n in question 1 is 16

and value of n in question 2 is -1

Artemon [7]3 years ago
3 0

Answer:

Problem 1: n = 16

Problem 2: n = -1

Step-by-step explanation:

Problem 1:

-3n + 48 = 0

We solve the equation for n.

First, subtract 48 from both sides.

-3n = -48

Now divide both sides by -3. This cancels out the negative on both sides:

n = 16

-2n + 10 -5n = 17

First, combine the terms with n:

-7n + 10 = 17

Now, combine the numbers that don't have n (subtract 10 from both sides).

-7n = 7

n = -1

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Write and solve a real-world problem that can be represented by the expression (-3)(5)+10.
Blizzard [7]

Hi!

(-3)(5)+10

-15+10

=-5

<u>Explanation: </u><u><em>This question is about math, and this lesson is about order of operations. I will give you a hint. You had to used PEMDAS, P-Parenthesis should be go first, E-Exponents, M-Multiply, D-Divide, A-Add, and S-Subtract. If you use multiply, divide, add, or subtract it should go left to right. First, you had to multiply and divide should go left to right. And it gave us -15+10.  And finally, you should add and subtract by left to right. And it gave us -5 is correct answer. Hope this helps! Thank you for posting your question at here on Brainly. And have a great day. -Charlie</em></u>

5 0
3 years ago
PLEASE HELP !!!! Please help !!!
BartSMP [9]

Answer:

1450$

Step-by-step explanation:

follow the basic steps to calculate the mean.

1. add up all of the numbers in the data set. in this case you would add up the all of the money since the question is asking for that.

2. divide by the amont of numbers there are.

1400+800+2150=4350

4350÷3=1450

hope this helped :)

7 0
3 years ago
The path of a ball kicked from the ground can be modeled by the equation y=−1/5(x−5)(x−20), where x and y are measured in feet.
Helen [10]

Answer:

Step-by-step explanation:

This is already factored for the zeros of the quadratic.  If x - 5 = 0 and x - 20 = 0 then x = 5 and 20.  The ball was kicked 5 feet out and landed at 20 feet down the field.  The difference is 15 feet.  That's how far the ball traveled from its initial position on the ground to its landing place.

So 15 feet from where it was kicked.

5 0
4 years ago
Simplify the ratio 3:2.1
Andre45 [30]
<h3>Answer is   10:7</h3>

=======================================================

Explanation

It sounds like you want the decimal number to become a whole number. If so, then one way is to multiply both parts by 10 to move that decimal point over one spot to the right

3*10 = 30

2.1*10 = 21

The ratio 3:2.1 is equivalent to 30:21

-----

Then notice how 30 and 21 have the greatest common factor 3. Divide both parts by 3 so we can fully reduce this ratio

30/3 = 10

21/3 = 7

The ratio 30:21 simplifies fully to 10:7

The numbers 10 and 7 do not have any factors in common, other than 1, so we cannot reduce 10:7 any further.

7 0
4 years ago
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