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
lesya692 [45]
3 years ago
5

How do you solve the systems by substitution y=3x+1 and y=5x-3

Mathematics
1 answer:
rewona [7]3 years ago
4 0
**plug in the first equation into the y of the next.

3x + 1 = 5x - 3
-1 from both sides
3x = 5x -4
-5x from both sides
-2x = -4
divide both sides by negative 2

x= 2
You might be interested in
Any idea on this please help
qwelly [4]
I think it might be 72+0?
8 0
3 years ago
Read 2 more answers
250 grams of sugar cost 150 dollars at Shop X. 100 grams of sugar cost 95 dollars at Shop Y. What is the difference in cost per
nata0808 [166]
<h2>Answer:</h2>

350 dollars

<h2>Step-by-step explanation:</h2>

<em>(step 1) Find the cost per kilogramme of sugar in shop X</em>

In shop X:

250 grams of sugar costs 150 dollars.

<em>Remember that;</em>

1000 grams = 1 kilogramme.

=> 250 grams will be equal to 0.25 kilogramme

Therefore (replacing 250 grams with 0.25 kilogramme) in shop X;

0.25 kilogramme of sugar costs 150 dollars

Now, if

0.25 kilogramme = 150 dollars,

=> 1 kilogramme =  150 dollars x 1 kilogramme / 0.25 kilogramme

=> 1 kilogramme = 600 dollars

Therefore, the cost per kilogramme of sugar in shop X is 600 dollars

<em>(step 2) Find the cost per kilogramme of sugar in shop Y</em>

In shop Y:

100 grams of sugar costs 95 dollars.

<em>Remember that;</em>

1000 grams = 1 kilogramme.

=> 100 grams will be equal to 0.1 kilogramme

Therefore (replacing 100 grams with 0.1 kilogramme) in shop Y;

0.1 kilogramme of sugar costs 95 dollars

Now, if

0.1 kilogramme = 95 dollars,

=> 1 kilogramme =  95 dollars x 1 kilogramme / 0.1 kilogramme

=> 1 kilogramme = 950 dollars

Therefore, the cost per kilogramme of sugar in shop Y is 950 dollars

<em>(step 3) Find the difference in cost per kilogramme of sugar between the two shops</em>

The difference is calculated by subtracting the cost per kilogramme of sugar in shop X from the cost per kilogramme of sugar in shop Y. i.e

=> cost per kilogramme of sugar in shop Y - cost per kilogramme of sugar in shop X

=> 950 dollars - 600 dollars

=> 350 dollars.

Therefore, the difference in cost per kilogramme is 350 dollars

3 0
2 years ago
HELP PLEASE! What’s the domain and range?
NeX [460]

Answer:

Domain → (-∞, -1)∪(-1, ∞)

Range → (-∞, ∞)

Step-by-step explanation:

Given function is,

\frac{f(x)}{g(x)}=\frac{x^2+2x-5}{2x+2}

This function is not defined when the denominator is zero.

2x + 2 = 0

2x = -2

x = -1

Therefore, x = -1 is not in the domain of this function.

And the domain will be,

(-∞, -1)∪(-1, ∞)

For all values of x (except x = -1) we get some output values (value of \frac{f(x)}{g(x)}).

Therefore, range of the function will be (-∞, ∞).

7 0
3 years ago
8miles in 1 hour write an expression of the total distance
Brilliant_brown [7]

Answer:

f(x)=1x·8= total distance

Step-by-step explanation:

f(x) is a function

1= hour

x= how many hours

8= miles

5 0
3 years ago
Read 2 more answers
Write an equation in slope intercept form of the line through point p(8,6) with slope -2
Anestetic [448]
Y = -2x + 6


I think this is it
7 0
3 years ago
Other questions:
  • Need help plese it's easy just im stuck
    8·1 answer
  • 5 friends will equally share the 3 jars of honey they got from their beehive.
    9·1 answer
  • Find the limit of the function algebraically. alt='limit as x approaches zero of quantity negative seven plus x divided by x squ
    15·1 answer
  • What is a + 1/10 = 5/10 (need fast)
    11·2 answers
  • If tan 20=5 find tan​
    6·1 answer
  • Solve the following equations for the variable 10=2x+5 pls help
    7·1 answer
  • Another customer calls you wanting to know how much fence they should install around the circumference of their circular garden
    15·1 answer
  • A.12
    6·1 answer
  • Write the equation of the vertical line that goes through the point<br> (3, 4).
    13·1 answer
  • Investor Lucas just bought a large amount of stock in Company Y. What may have motivated his behavior? (5 points)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!