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
Tpy6a [65]
4 years ago
11

Solve, using the substitution method. m + n = 5 m – n = 3

Mathematics
2 answers:
vova2212 [387]4 years ago
8 0
First rearrange the first equation and solve it for 'm':

m + n = 5

Subtract n to both sides:

m = -n + 5

Now plug in -n + 5 for 'm' in the 2nd equation:

-n + 5 - n = 3

Combine like terms:

-2n + 5 = 3

Subtract 5 to both sides:

-2n = -2

Divide -2 to both sides:

n = 1

Now we can plug this back into any of the two equations and solve for 'm':

m + n = 5

m + 1 = 5

Subtract 1 to both sides:

m = 4

So our full answer is (4, 1)
Kay [80]4 years ago
7 0
M + n = 5
m= n + 3

plug m=n+3 into the first equation. 

(n+3)+n=5
n+n+3=5
2n+3=5
2n=2
n=1

You might be interested in
Write a^6 using a positive exponent
VikaD [51]
This is already written with positive exponent
5 0
3 years ago
A small company can produce up to 200 handmade sandals a month. The monthly cost, C, of producing x sandals is C(x) = 1000 + 5x.
wariber [46]
<span>I will assume the more likely selection of $10 per sandal as opposed to $0.05 per sandal. So with the formulas c = 1000 + 5x r = 75x - 0.4x^2 Sandals Cost Revenue Profit or Loss 0 $1,000.00 $0.00 -$1,000.00 1 $1,005.00 $74.60 -$930.40 2 $1,010.00 $148.40 -$861.60 3 $1,015.00 $221.40 -$793.60 4 $1,020.00 $293.60 -$726.40 5 $1,025.00 $365.00 -$660.00 6 $1,030.00 $435.60 -$594.40 7 $1,035.00 $505.40 -$529.60 8 $1,040.00 $574.40 -$465.60 9 $1,045.00 $642.60 -$402.40 10 $1,050.00 $710.00 -$340.00 11 $1,055.00 $776.60 -$278.40 12 $1,060.00 $842.40 -$217.60 13 $1,065.00 $907.40 -$157.60 14 $1,070.00 $971.60 -$98.40 15 $1,075.00 $1,035.00 -$40.00 16 $1,080.00 $1,097.60 $17.60 17 $1,085.00 $1,159.40 $74.40 18 $1,090.00 $1,220.40 $130.40 19 $1,095.00 $1,280.60 $185.60 20 $1,100.00 $1,340.00 $240.00 As you can see 16 sandals and up is profitable. At what production levels will the company lose money? a. between 0 and 10 or between 150 and 190 pairs, inclusive 150 and 190 c. between 10 and 20 or between 50 and 100, inclusive If you add up the profit between 10 and 20 you will get $-484 so 50 and 100 b. between 0 and 15 or between 160 and 200 pairs, inclusive 160 and 200 d. between 15 and 35 or between 75 and 125, inclusive Neither 15 and 35 or 75 and 125 will lose money.</span>
3 0
3 years ago
Is 1 5/6 a rational number or a iraarational
gizmo_the_mogwai [7]

Answer: rational number

Step-by-step explanation:

Mixed numbers are all rational numbers because they can be expressed as a fraction. To be a rational number, a number must be able to be written

4 0
3 years ago
3/7 to 6/7. what is the percent of change
stepan [7]
Percent change = (new - old)/old * 100
(6/7 - 3/7)/(3/7) * 100
3/7 * 7/3 * 100
1 * 100
100%
4 0
4 years ago
Read 2 more answers
What is the y-intercept of the function,represented by the table of values below?
Hitman42 [59]

Answer:

8

Step-by-step explanation:

So the y-intercept is not given by your table because there is no x that is listed as 0.

But don't fret; we can still find it.

Let's see if the function is linear by seeing if we have the same slope per two points in the table.

For the first pair ( the points (-2,16) and (1,4) ), x increased by 3 and the y decreased by 12 so the slope there is -12/3=-4.

Now looking at the next pair ( the points (1,4) and (2,0) ), x increased by 1 while y decreased by 4 so the slope is -4/1=-4.

So the function appears to be linear.

So the slope-intercept form of a line is y=mx+b where m is slope and b is y-intercept.

We already found the slope from earlier which is m=-4.

So the equation so far is y=-4x+b.

Now to find b, the y-intercept, we need to use a point (x,y) on the line along with y=-4x+b.

Let's see my favorite on the list of points is (2,0).

y=-4x+b with (x,y)=(2,0)

0=-4(2)+b

0=-8+b

8=b

So the y-intercept is 8.

8 0
3 years ago
Read 2 more answers
Other questions:
  • All possible ways to solve 35-17
    14·1 answer
  • What’s the percent increase of 2.82 to 2.88
    8·1 answer
  • Kevin has 16 ounce can of mixed nuts he gives 1/2 of the mixed nuts to his sister. He then eats 3/4 of the remaining nuts. How m
    10·1 answer
  • 1. Provide two examples of a function: (1) as a table of values and (2) as a graph. Explain the definition of a function. Be sur
    15·1 answer
  • The following line graph shows the number of hours that Todd and Brianna slept each night over the past week. On which night was
    11·2 answers
  • 8 mm
    11·1 answer
  • Amelia bought 9/12 pound of sliced salami at the deli counter. Which of the following decimals did the scale show,
    6·2 answers
  • The sum of two numbers is -18. If the first number is 10, which equation represents this situation, and what is the second numbe
    7·1 answer
  • 2(x)+2(2)=2(x/2)-2(x)<br> Solve this please and show the steps!!!!!!
    5·2 answers
  • Help me plz..
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!