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
DENIUS [597]
2 years ago
8

There are five envelopes on a table. Four of the envelopes are marked 8, 2, 4 and 1. You are told that the mean of the numbers o

n the envelopes is 4. What is the number on the fifth envelope?
Mathematics
1 answer:
Lostsunrise [7]2 years ago
3 0

Answer: 16

Step-by-step explanation:

You might be interested in
Find the value of A in the equation 5/a+3=3/A-2
amid [387]
5+3a = 3-2a
So
5a = -2
a=-2/5=-0.4
4 0
3 years ago
Read 2 more answers
Mr. West is standing on a cliff that is 25 1/5meters above the surface of the ocean. He spots a dolphin that is 2 3/5 meters und
zhenek [66]

Answer:

Total distance from Mr. West to dolphin =27\frac{4}{5}\ meters

Step-by-step explanation:

Height of cliff on which Mr. West is standing above the surface of ocean =25 \frac{1}{5} \ meters

Mr. West spot the dolphin under the water at a depth of =  2\frac{3}{5} \ meters

∴ Total distance from Mr. West to dolphin=(25 \frac{1}{5}+2\frac{3}{5})\ meters

Adding mixed numbers

(25 \frac{1}{5}+2\frac{3}{5})

Adding whole numbers first.

=25+2+\frac{1}{5}+\frac{3}{5}\\=27+\frac{1}{5}+\frac{3}{5}

Adding fractions by taking LCD.

=27+\frac{1+3}{5}\\=27+\frac{4}{5}\\=27\frac{4}{5}\ meters

5 0
3 years ago
A washer and a dryer cost 792 combined. The washer costs 92 more than the dryer. What is the cost of the dryer?
WITCHER [35]

Answer:

divide 792 by 2

792÷2=304

then add 92 to the cost 304

304+92=396

6 0
2 years ago
Amy makes a rectangular poster with an area of 21+28m square inches. The width of the poster is 7 inches as shown in the followi
Lesechka [4]
You could use simple factoring to solve this. You would factor out a 7 and then have

7(3+4m) = A

l x w = A

w= 3 +4m
8 0
3 years ago
An equation that defines y as a function of x is given. a. solve for y in terms of x and
Ymorist [56]

Answer:

  • f(x) = 2x -2/3
  • f(3) = 5 1/3

Step-by-step explanation:

We solve an equation for a specific variable by using inverse operations to undo what is done to the variable. The resulting function is evaluated by substituting the given value for the variable.

__

<h3>a.</h3>

We are given the equation ...

  6x -3y = 2

Solving for y, we get ...

  6x -2 = 3y . . . . . add 3y-2 to both sides

  2x -2/3 = y . . . . . divide by 3

  f(x) = 2x -2/3 . . . . write using functional notation

__

<h3>b.</h3>

To find f(3), we use x=3 in the function.

  f(3) = 2(3) -2/3 = 6 -2/3

  f(3) = 5 1/3

4 0
2 years ago
Other questions:
  • How do I evaluate an expression?
    6·1 answer
  • You roll a number cube twice. What is the probability of rolling a 2 first and then rolling an odd number?
    5·2 answers
  • Solve the equation. (enter your answers as a comma-separated list.)2^−125x = (0.5)^x − 5
    10·1 answer
  • Please Help it’s Urgent
    14·1 answer
  • Find an equation for the line with slope m=6/5 and which goes through the point (15,8)
    14·1 answer
  • 3(2x+9) = 4+3x-1<br><br> What does x equal
    15·2 answers
  • What is the image of point (3,5) if the rotstion is -180 degrees
    5·1 answer
  • 3(y+2)+2(4-3)=-15 please help
    10·1 answer
  • When the function f(x) = 4(2)x is changed to f(x) = 4(2)x − 13, what is the effect? (5 points)
    12·1 answer
  • Which equation is parallel to
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!