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
Colt1911 [192]
3 years ago
13

Evaluate 4 M-n if m= -7 and n = 2.

Mathematics
1 answer:
gregori [183]3 years ago
7 0

Answer:

-30

Step-by-step explanation:

I'm assuming the equation is 4m-n. If it is not please tell me.

If we know the values of m and n, we can just substitute inside the expression.

4(-7) - 2\\\\-28 - 2\\\\-30

Hope this helped!

You might be interested in
A bookshelf can hold a maximum of 45 books. Let b represents the number of books to be shelved. Which inequality represents how
leonid [27]
The number of books that can be shelved is 45. So then we know that the amount that need to be shelved <em>can</em> be 45, if the bookshelf had 0 books on it. This means that it can have the equal part of the inequality sign.

However, the amount of book that need to be shelved cannot <em>exceed</em> 45, so b must be less than 45.

Therefore, the answer must be D) b ≤ 45.
7 0
3 years ago
What’s life about and why are we here on this earth
svp [43]
Making friends and taking trips and big dumps
8 0
2 years ago
Read 2 more answers
Easiest way to calculate 22% mark up from a cost of say 39.99
satela [25.4K]

Answer:

The markup amount on the cost 39.99 $ will be: 8.78 $

Step-by-step explanation:

Given

  • The cost = 39.99 (Let say in $)
  • Mark up = 22%

As

22% = 0.22

The markup of 22% on the cost can be calculated by multiplying the cost by 22% or 0.22

so

Markup amount = 0.22 × 39.99

                           = 8.78 $

Therefore, the markup amount on the cost 39.99 $ will be: 8.78 $

6 0
2 years ago
If 2 is added to both the numerator and denominator of a fraction its value becomes half. If two is subtracted from both the num
Hitman42 [59]

Answer:

The original fraction is \frac{6}{14}.

Step-by-step explanation:

Solution,

Let the fraction be'\frac{x}{y}'.

Where 'x' is the numerator and 'y' is the denominator.

Now according to question, if 2 is added to both the numerator and denominator the value of the fraction becomes 1/2.

So, framing the above sentence in equation form, we get;

\frac{x+2}{y+2}=\frac{1}{2}

On using cross multiplication method, we get;

2(x+2)=y+2\\\\2x+4=y+2\\\\2x+4-2=y\\\\\therefore\ y=2x+2\ \ \ \ equation\ 1

Now according to question, if 2 is Subtracted to both the numerator and denominator the value of the fraction becomes 1/3.

So, framing the above sentence in equation form, we get;

\frac{x-2}{y-2}=\frac{1}{3}

On using cross multiplication method, we get;

3(x-2)=y-2\\\\3x-6=y-2\\\\3x-y=-2+6\\\\3x-y=4 \ \ \ \ equation\ 2

Now Substituting the equation 1 in equation 1 we get;

3x-y=4\\\\3x-(2x+2)=4\\\\3x-2x-2=4\\\\3x-2x=4+2\\\\x=6

Now Substituting the value of x in equation 1 we get;

y=2x+2\\\\y=2\times6+2 = 14

Hence The original fraction is \frac{6}{14}.

4 0
3 years ago
A bag of marbles contains 3 blue marbles, 2 green marbles and 5 red marbles. A marble is chosen at random. The probability that
julsineya [31]

Step-by-step explanation:

the probability will be  amount of green marbles over total amount of marbles

if there are 2 green marbles, and 10 total the probability is 2/10, or 20%

5 0
2 years ago
Other questions:
  • Help help i will give brainliest please look at picture
    10·2 answers
  • Based on the dot plots shown in the images, which of the following is a true statement? A. Set B has the greater mode. B. Set A
    15·1 answer
  • A clothing manufacturer is making scarves that require 3/4 yard for material each. How many can be made from 19 yards of materia
    5·1 answer
  • Seven cards are numbered from 1 to 7 and placed in a box. One card is selected at random and not replaced. Another card is rando
    5·1 answer
  • In which quadrant is the number 6 – 8i located on the complex plane?
    10·2 answers
  • I’m stuck on this I’ll give u brainlieast if you answer correctly !
    7·1 answer
  • What is the value of X
    5·1 answer
  • Please answer correctly and no links​
    13·1 answer
  • Please help me with this question :) <br> I will mark you as brainliest
    10·1 answer
  • HELP ASAp!!! Will give brainlest. Find all solutions of the equation in the interval
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!