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
Bezzdna [24]
3 years ago
9

How do you solve linear equations by subsitutions

Mathematics
1 answer:
TiliK225 [7]3 years ago
5 0
1) First, solve one linear equation for y in terms of x .

2) Then substitute that expression for y in the other linear equation.

3)Solve this, and you have the x -coordinate of the intersection.

4)Then plug in x to either equation to find the corresponding y -coordinate.


You might be interested in
Each week you drive 150 miles your car gets 25 miles a gallon and gas prices are three dollars per gallon how much gas will you
mixas84 [53]
Number of gallons of gAS USED / WEEK = 150/25 = 6 gallons

Cost = 6 * 3 = 18 dollars (answer).
4 0
3 years ago
Help pls it’s the last day of summer school
Lyrx [107]
2 1/3 and it is the same for me lol
4 0
3 years ago
Predict what the y-value will be if the x-value is 200.
zvonat [6]

Answer:

y = 555.5

Step-by-step explanation:

Hope that helps

6 0
3 years ago
Lynn is trying to determine how far away Student B is from the balloon. He decides to use the
kaheart [24]

Answer:

See Explanation

Step-by-step explanation:

<em>The question is incomplete as the image that illustrates the scenario is not given.</em>

<em>However, I can deduce that the question is about a right-angled triangle.</em>

<em>So, I will give a general explanation on how to find each of the side of the triangle, given a side and an angle.</em>

<em />

<u>For triangle A (solve for b)</u>

Using cosine formula.

\cos \theta = \frac{Adjacent}{Hypotenuse}

\cos 60= \frac{5}{b}

Make b the subject

b= \frac{5}{\cos 60}

<u>For triangle B (solve for b)</u>

Using cosine formula.

\sin \theta = \frac{Opposite}{Hypotenuse}

\sin 60= \frac{b}{5}

Make b the subject

b = 5\sin 60

<u>For triangle C (solve for b)</u>

Using cosine formula.

\tan \theta = \frac{Opposite}{Adjacent}

\tan 60= \frac{b}{5}

Make b the subject

b = 5\tan 60

3 0
3 years ago
Read 2 more answers
What is their vetocity
bixtya [17]
There vetocity is D/t =s is ükùû
5 0
3 years ago
Other questions:
  • Given f (x) = 3 x minus 1 and g (x) = 2 x minus 3, for which value of x does g (x) = f (2)?
    9·2 answers
  • The bacteria in a certain culture double every 7.3 hours. The culture has 6,500 bacteria at the start.
    8·1 answer
  • Simplify the expression and solve the equation. Show all calculations
    14·1 answer
  • What is the greatest common factor of 18s+54
    8·2 answers
  • The Gomes family is on a road trip.On the first day,they drove a distance shown as 3 1/2 inches on a map.The actual distance tha
    8·1 answer
  • marni dance in a contest to raise money for an animal shelter Marni raise 30+ $1.80 per minute that she danced she raised a tota
    15·1 answer
  • Sophie Ruth is eating a 50 gram chocolate bar which contains 30% of cocoa.How many grams of coco are in the chocolate bar?
    5·1 answer
  • Which of the following are geometric sequences?<br> Check all that apply.
    11·1 answer
  • Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 – 10x +2? rig
    9·1 answer
  • A company reduced the prices of its goals by 13% during a promotional sale. A product was sold for 435.00 during the promotional
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!