All categories

2 years ago

Make n the subject of the formula

Mathematics

1 answer:

kogti [31]2 years ago

3 0

Answer:

$\mathsf{ \frac{m + 21}{5} = n }$

Step-by-step explanation:

To make "n" the subject of the formula, rearrange the formula so it begins with " n = "

To isolate the variable "n", you need to inverse the other terms on that side of the equation where "n" really is.

=> m = 5n - 21

there's a "-21" next to "5n", inverse of subtraction is addition, so add 21 on both sides of the equation.

=> m + 21 = 5n - 21 + 21

=> m+ 21 = 5n

There's also a 5 attached to n, that means the multiplication of n with 5, the inverse of multiplication is division, so dividing both sides of the equation by 5

$\mathsf{ \frac{m + 21}{5} = n }$

You might be interested in

The base of the right prism is a rhombus with the side 7 cm. The altitude of the prism is h=13 cm. Find the lateral area of the

Art [367]

Answer:The lateral area is $364\ cm^{2}$

Step-by-step explanation:

we know that

The lateral area of the right prism is equal to

$LA=Ph$

where

P is the perimeter of the base

H is the height of the prism

Find the perimeter of the base P

$P=4(7)=28\ cm$ ----> the rhombus has four equal sides

$h=13\ cm$

substitute

$LA=28(13)=364\ cm^{2}$

6 0

2 years ago

Read 2 more answers

Several students decide to start a T-shirt company after initial expenses of $280 they purchase each T-shirt wholesale for $3.99

JulsSmile [24]

10.99x = 3.99x + 280
7x = 280
x = 40
They must sell 40 T-shirts to break even

4 0

2 years ago

Read 2 more answers

Sylvie finds the solution to the system of equations by graphing.

Rina8888 [55]

Answer:

The third graph is your answer.

Step-by-step explanation:

I included a graph below with the correct graphing.

7 0

2 years ago

One month, ruby worked 8 hours more than isaac, and svetlana worked 4 times as many hours as ruby. together they worked 136 hour

Travka [436]

Let Issac work for x hours, and Ruby works 8 hours more than of Issac, so Ruby work for $(x+8)$ hours.

And Svetlana worked four times of Ruby, therefore Svetlana worked for

$4(x+8) hours$

And total hours they worked together is 136. That is

$x+x+8 + 4(x+8) = 136
\\
x+x+8 +4x+32=136
\\
6x+40 =136
\\
6x=96
\\
x =16 hours$

So Issac worked for 16 hours, Ruby worked for 24 hours and Svetlana worked for 24 times 4 equals 96 hours .

6 0

2 years ago

I report if you answer randomly.

sasho [114]

Answer:

C. n=23; p^=0.5

Step-by-step explanation:

Normal distribution is symmetrical about the mean.

So, p should be close to ½

5 0

2 years ago