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
sp2606 [1]
3 years ago
12

X + y = 4

Mathematics
2 answers:
Helen [10]3 years ago
8 0

Here's how you solve this problem:

1) Multiply the first equation by 2 (result:2x+2y=8).

2) Add both equations together (result:2x+x+2y-2y=8-5)

3) Simplify (result:3x=3)

The answer is 3x=3.

This could be simplified more, however, to equal x=1, since both sides are divisible by 3.

p.s. Have a good day!

zalisa [80]3 years ago
4 0

Answer:

Well it would come out to 2x-3y=-9

Step-by-step explanation:

You might be interested in
(10) Both red line and blue line trains left the station at 5:00 pm. If both
scoundrel [369]

Answer:

5:40

Step-by-step explanation:

This is a problem involving the least common difference.

If you know that the red and blue trains left at the same time at 5, you know that another red train will leave at 5:08. Another blue train at 5:10.

The way to solve this will be to write out the factors of 8 and 10 and find the smallest number that they overlap.

Red:

8, 16, 24, 32, 40, 48, 56, 64, 72, 80

Blue:

10, 20, 30, 40

You see that after 40 mnutes, they are both leaving the station again. After 40 minutes, at 5:40, they are both leaving.

6 0
3 years ago
I'm not sure what they mean by "relations that represents a function". I don't understand this.
sergeinik [125]
Means, for every 1 input, there is 1 coresponding output
normally x is input and y is output in form (x,y)
so just look for the option(s) that has/have every first number repeat with only 1 2nd number

A. -7 repeats with 5 and -3, not a function

B. no repeats of first number (6,-8) and (-5,-8) are fine because first numbers don't repeat, das is funciton

C. no repeats, function

D. no repeats, function


answer is B,C,D


4 0
3 years ago
If the line in the graph is shifted up two units which is the equation of the new line
anastassius [24]

Answer:

f(x) + 2.

Step-by-step explanation:

Example:

If we have say f(x) = x + 1 then 2 units will be added to f(x) when it is moved up 2 units.

So the equation of this line will be f(x) + 2 which in this example is

x + 1+ 2.

The new function is  x + 3.

5 0
3 years ago
Solve the equation. Check your solution.
zzz [600]
I’m pretty sure it’s -4
3 0
2 years ago
Suppose researchers marked 800 turtles and later were able to trap a total of 300 individuals in that population, of which 150 w
aleksklad [387]
The estimate for the total population size is 1600.

Setting up a proportion for this, we know that 150 out of our 300 turtle sample is marked; this is the first ratio for the proportion.  We also know that we marked 800 of our total population, which we will call x:

150/300 = 800/x

Cross multiply:
150*x = 300*800
150x = 240000

Divide both sides by 150:
150x/150 = 240000/150
x = 1600
8 0
3 years ago
Other questions:
  • Find the number of possible positive real zeros of 2x^4+14x^3-35x^2
    9·1 answer
  • I need help ASAP I’ll mark as brainliest
    7·1 answer
  • What is the value of x?
    12·1 answer
  • 2 miles equal how many feet explain your answer
    5·2 answers
  • A(q-8)=23 solve for q
    12·1 answer
  • A teacher earns $18,500 per year. If 18% of her income is withheld for taxes, how
    8·1 answer
  • Identify the value of C for completing the square
    10·1 answer
  • 45 less than a number m is −78
    6·1 answer
  • Given that MTW = CAD, which segments are corresponding parts of the congruent triangles?
    10·1 answer
  • On a map, Sacramento is 8 cm from San Francisco. This represents an actual distance of 91 miles. On the same map, Sacramento is
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!