1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jek_recluse [69]
3 years ago
7

Solve the equation 5n+7=21

Mathematics
2 answers:
Simora [160]3 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]3 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
PLS HELP ME
lianna [129]

Answer: Percentage increase: 57%

Percent increase if the airline charges an additional 50:  14.5% or 15%

Depends if your teacher wants more accurate results with the decimal, or rounded up with 15.

Step-by-step explanation:

Ill explain in the comments bc for some reason its not letting me put it here

7 0
3 years ago
PLEASE I NEED HELP! THANK YOU.
Elden [556K]

First set up a linear equation  and using the x and y values in the table see if it solves.

It doesn't solve so we know it isn't linear. ( I won't show all those steps because they aren't needed.)

Using the quadratic formula y = ax^2 +bx +c

Build a set of 3 equations from the table:

C is the Y intercept ( when X is 0), this is shown in the table as 6

Now we have y = ax^2 + bx + 6

-2.4 =4a-2b +6

1.4 = a-b +6

Rewrite the equations

a=b/2 -2.1

1.4 = b/2-2.1 +6

b = 5

a = 5/2 -2.1 = 0.4

replace the letters to get y = 0.4x^2 + 5x +6

4 0
3 years ago
A five inch tall bamboo shoot doubles in height every three days. If the equation y=ab^x, where x is the number of doubling peri
stiv31 [10]
The correct answer for the question that is being presented above is this one: "x = 2; a = 5; b = 3" A 5 inch tall bamboo shoot doubles in height every 3 days. If the equation y=ab^x, where x is the number of doubling periods, represents the height of the bamboo shoot

4 0
3 years ago
How to solve this problem?
makkiz [27]
The answer is c because, if u change 15% to a decimal (0.15) then u get 5,250 and when u add that to 35,000 you get 40,250
3 0
3 years ago
What is a real world provlem tjat involves dividing a decimal by a whole number?
Alina [70]
Money makes for nice decimal examples.

If you had $1.50, and you wanted to split it among three people, you would have :

1.50 divided by 3 (which would be $0.50 each)
5 0
3 years ago
Other questions:
  • Divide a 5 1/4 inch line into three parts whose ratios are 1:2:3.
    9·2 answers
  • How are the dividend and divisor of a division expression related to parts of a fraction
    6·1 answer
  • Solve for x.<br>– 6 = - 4/x​
    14·1 answer
  • The population of a town increases at a rate of 5% every year. The population of this town was 10,400 in 2017. What will
    5·1 answer
  • A banquet hall serves 2,394 pounds of turkey during a 3-week period. If the same amount is served each day, how many pounds of t
    15·1 answer
  • Which functions are odd? Select all that apply.
    7·1 answer
  • A home owner is building a fence around his backyard and needs to know how much material to buy. he would need to calculate ____
    11·2 answers
  • HURRY WILL MARK BRAINLIEST what is the value of the output when the input is 20
    7·1 answer
  • Can u please help me? im super confused​
    5·1 answer
  • Riders on a Ferris wheel travel in a circle in a vertical plane. A particular wheel has radius 20 feet and revolves at the const
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!