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zubka84 [21]
2 years ago
11

9n - 7 = 5n - 19 What is n and why did you do that

Mathematics
2 answers:
Daniel [21]2 years ago
6 0

Answer:

n=-3

Step-by-step explanation:

1) subtract 5n from both sides

2) Add 7 to both sides

3) divide both side by 4

Hope this helps

tamaranim1 [39]2 years ago
5 0

14n=-26

i tried at least

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Maria uses 2 centimeters of tape for every present she wraps. Write an equation that shows the relationship between the number o
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y = 2x

Step-by-step explanation:

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6 0
3 years ago
I already solved this but I'm confused if the answer is A or C?
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The answer is C. a 4.5 feet, b. 30 feet
8 0
2 years ago
Read 2 more answers
The length and width of a rectangle are consecutive integers. The perimeter of the
Hunter-Best [27]

The length of the rectangle is 9 feet and the width of the rectangle is 10 feet.

<h3>What is the Perimeter of a Rectangle?</h3>

The sum of a rectangle's boundary lengths on all sides is known as its perimeter. A rectangle's perimeter is a linear measurement that can be expressed in meters, feet, inches, or yards. Let's first comprehend the two fundamental characteristics of a rectangle.

  • A rectangle has four 90° angles.
  • The lengths of a rectangle's diagonals are equal.

Let the length of the rectangle be x feet

Then, the width of the rectangle will be x+1feet

We know that the perimeter of a rectangle is given by

P= 2(l+w)

Here

P= perimeter of a rectangle

l=length of the rectangle

w= width of the rectangle

Put l=x, w= x+1 and P= 38 in the perimeter formula

38 = 2(x+x+1)

Divide both sides by 2

19= x+x+1

19= 2x+1

Subtract 1 from both sides

18=2x

Divide both sides by 2

x=9 feet

This is the length of the rectangle.

Now, the width x+1 of the rectangle will be

9+1 = 10 feet

To know more about the perimeter of a rectangle, visit:

brainly.com/question/2142493

#SPJ9

5 0
9 months ago
Which step is it?? Please help me.
eduard

Answer:

Use PEMDAS so division would be the first step

Step-by-step explanation:

1)Parentheses

2)Exponents

3)Multiplication

4)Division

5)Addition

6)Subtraction

6 0
3 years ago
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