All categories

3 years ago

If m= 3 in the equation 2m=4-n, find the value of n.

Mathematics

2 answers:

LuckyWell [14K]3 years ago

3 0

Answer:

-2

Step-by-step explanation:

AnnZ [28]3 years ago

3 0

N=-2
explanation: since m=3 replace m with 3 to multiply it with 2. 2(3)=6 so the equation now is 6=4-n. Subtract 4 on both sides and get 2=-n which would be n=-2.

You might be interested in

a school club needs 300 feet of rope for a project. they have the amounts of rope listed below. 2 pieces of rope that each 16 ya

Katena32 [7]

If the school club uses all of that rope, the amount of rope used so far is 167.75. If you subtract 167.75 from 300 you get 132.25.

8 0

3 years ago

Read 2 more answers

James had 568 books to put into 9 boxes. How many boxes were in each box ?Where there any book left that needs another box?

vaieri [72.5K]

Answer:

63 books in each boxes

1 book left which need a box

Step-by-step explanation:

James has 568 books

He plans to put them into 9 boxes

Therefore the number of books n each boxes can be calculated as follows

= 568/9

63 remainder 1

Hence there would be 63 books in each boxes and 1 book would be left which need another box

6 0

3 years ago

Help please time limit...Amanda is choosing between two exercise routines.

Marina86 [1]

Amanda must spend more than 8 minutes on Routine #1 to burn more calories than Routine #2.

Step-by-step explanation:

Routine # 1;

Calories burned in running = 15.5 per minute

Let,

t be the minutes spent running.

T = total calories burned

T = 15.5t

Routine # 2;

Calories burned while walking = 22 calories

Calories burned while running = 12.75 per minute

T = 12.75t + 22

For burning more calories in Routine 1;

Routine 1 > Routine 2

$15.5t>12.75t+22\\15.5t-12.75t>22\\2.75t>22\\$

Dividing both sides by 2.75

$\frac{2.75t}{2.75}>\frac{22}{2.75}\\t>8$

Amanda must spend more than 8 minutes on Routine #1 to burn more calories than Routine #2.

Keywords: linear inequality, division

Learn more about division at:

#LearnwithBrainly

7 0

3 years ago

What is the area of the shaded region?

saveliy_v [14]

Answer:

Answer is 330

Step-by-step explanation:

$area \: of \: shaded \: region \: = \pi {r}^{2} - \pi( {x}^{2} \\ here \: r = 11 \: cm \: and \: x = 4 \: cm \\ area \: of \: a \\ shaded \: regoin \: = \pi( {r}^{2} - {x}^{2} ) \\ = \pi( {11}^{2} - {4}^{2} ) \\ = \pi(121 - 16) \\ = \pi(105) \\ = \frac{22}{7} \times 105 \\ = 22 \times 15 \\ = 330 \: {cm}^{2}$

AREA OF SHADED REGION =330

 HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION. 

5 0

3 years ago

An Electrician charges $30 for a service call plus $75 per hour of service. If he charged 210 how many hours did he work?

andreyandreev [35.5K]

30 + 75x= 210
Subtract 30 from both sides
75x=180
Divide both sides by 75
X =2.4

Worked 2.4 hours

3 0

3 years ago

If m= 3 in the equation 2m=4-n, find the value of n.​

If m= 3 in the equation 2m=4-n, find the value of n.