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vampirchik [111]
3 years ago
11

7n-4=31 so what does n equal

Mathematics
2 answers:
cluponka [151]3 years ago
8 0

Answer:

5

Step-by-step explanation:

1. Get the variable by itself by adding 4 to both sides

7n-4=31

   +4  +4

7n=35

2. Divide both sides by 7

7n=35

7n/7 = 35/7

3. Get the answer

n=5

Ratling [72]3 years ago
7 0

Answer:n=5

Step-by-step explanation:

7n-4=31

7n=31+4

7n=35

divide both sides with 7

n=5

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What is an equation of the line that passes through the point (-4, -7) and is
ale4655 [162]

Answer:

The answer is

<h2>y = 3x + 5</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the line parallel to 3x - y = 14 we must first find the slope of 3x - y = 14.

So we have

y = 3x - 14

Comparing with the general equation above

Slope / m = 3

Since the lines are parallel their slope are also the same

So slope of parallel line = 3

Equation of the line using point ( - 4 , -7) and slope 3 is

<h3>y + 7 = 3(x + 4) \\ y + 7 = 3x + 12 \\ y = 3x  + 12 - 7</h3>

We have the final answer as

<h3>y = 3x + 5</h3>

Hope this helps you

6 0
3 years ago
The sum of two numbers exceeds their product by one.Their difference is equal to their products less five .Find the two numbers
Ludmilka [50]

Answer:

1 and 3

Step-by-step explanation:

If the two numbers are x and y, then:

x + y = xy + 1

x − y = xy − 5

Subtract the two equations:

(x + y) − (x − y) = (xy + 1) − (xy − 5)

x + y − x + y = xy + 1 − xy + 5

2y = 6

y = 3

Solve for x:

x + 3 = 3x + 1

2 = 2x

x = 1

The numbers are 1 and 3.

4 0
3 years ago
Help me in number one please
morpeh [17]
Tthe answer is 3.      3=S     4 x 3 + 1 = 13
7 0
3 years ago
Which equation represents the slope intercept form of the line below? Please help I’ll mark correct answer
Semenov [28]

Answer:

it should be B,

Step-by-step explanation:

the y-intercept is where it crosses the y axis, so that is the plus 2,

and the slope is -3/7 because it is down 3 over 7 hope this helps

7 0
3 years ago
Read 2 more answers
Roger ordered 19 pizzas for 4 families to share equally. Which is the correct way to show how to find how much pizza each family
hammer [34]

Answer:

4.75 pizzas per family

Step-by-step explanation:

19/4=4.75 or 4 and 3/4 pizza per family

6 0
3 years ago
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