All categories

2 years ago

Solve the equation 5n+7=21

Mathematics

2 answers:

Simora [160]2 years ago

5 0

Answer:

Hi there, I believe the answer to this equation is: 2.8

Step-by-step explanation:

Subtract 7 on both sides so

5n+7=21-7

you are left with 5n=14 you need to get n by itself so divide 5 on both sides.

5n/5 = 14/5

n=2.8

Hope this is correct :)

Have a great day

kondor19780726 [428]2 years ago

5 0

Answer:

Subtract 7 on both sides so

5n+7=21-7

you are left with 5n=14 you need to get n by itself so divide 5 on both sides.

You might be interested in

Josh currently bench presses 150lbs. He increases that amount by 10% for a month for 3 months. About how much can he bench press

dimaraw [331]

He increased 30% so that means he can bench press 180lbs

7 0

2 years ago

Read 2 more answers

Equation for ( 6, 13) ( 7900, 5 )

tia_tia [17]

For this case we have that by definition, the equation of the line in the slope-intersection form is given by:

$y=mx+b$

Where:

m: It is the slope of the line

b: It is the cut-off point with the y axis

We have the following points through which the line passes:

$(x_ {1}, y_ {1}) :( 6,13)\\(x_ {2}, y_ {2}): (7900,5)$

We find the slope of the line:

$m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {5-13} {7900-6} = \frac {-8} {7894} = - \frac {4} {3947}$

Thus, the equation of the line is of the form:

$y = - \frac {4} {3947} x + b$

We substitute one of the points and find b:

$13 = - \frac {4} {3947} (6) + b\\13 = - \frac {24} {3947} + b\\13+ \frac {24} {3947} = b\\b = \frac {51335} {3947}$

Finally, the equation is:

$y = - \frac {4} {3947} x + \frac {51335} {3947}$

Answer:

$y = - \frac {4} {3947} x + \frac {51335} {3947}$

5 0

3 years ago

Fr 33 points for all! Enjoy it

slavikrds [6]

Answer:

Thanks :)

Step-by-step explanation: I hope you have/had an amazing day today<3

7 0

1 year ago

Read 2 more answers

Can somebody help me with this question please ?

inysia [295]

Answer: No.

Step-by-step explanation: g should also be factored out. 10g(a - 3z).

4 0

2 years ago

Select all that apply.

galina1969 [7]

A and C
^^^^^^^^^^^^^^^

4 0

3 years ago

Read 2 more answers