answer.
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
nekit [7.7K]
2 years ago
9

If x and y satisfy both 9x+2y=8 and 7x+2y=4, then y=?

Mathematics
1 answer:
Alex2 years ago
7 0

Answer:

The value of y is -5

Step-by-step explanation:

we have

9x+2y=8 ------> equation A

7x+2y=4 ------> equation B

we know that

If x and y satisfy both equations, then (x,y) is the solution of the system of equations

Using a graphing tool

Remember that

The solution of the systems of equations is the intersection point both graphs

The intersection point is (2,-5)

therefore

The solution of the system of equations is the point (2,-5)

The value of y is -5

You might be interested in
Last Sunday, the average temperature was 8\%8%8, percent higher than the average temperature two Sundays ago. The average temper
SVETLANKA909090 [29]

Answer: The two answers are 1.08<em>T</em> and (1 + \frac{8}{100} )<em>T</em>.

Step-by-step explanation:

Try multiplying 1.08 times any random number. If you use 5,  1.08 times 5 gives you 5.4.  This makes sense. Solve the other other expression as well and substitute <em>T</em><em> </em> with the SAME number that you used before (5). Hope that helps!

5 0
2 years ago
Kyla sold her laptop to Fely in a condition that Fely should give he a downpayment of Php8,000 and Fely will pay her Php1,000 ev
olga55 [171]
Wjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
5 0
2 years ago
Explain how to draw a trend line for a scatterplot using the divide-center of data method.
Korvikt [17]
Before you can draw a trend line in your data, you should have a given data at hand. And then draw the trend line or line of best fit.

1. Plot your data in a graphing paper or excel.
2. Make sure that your plotted data has a solid mark to indicate the points in the graph.
3. Divide your data points by labeling x at the center, at the farthest part of your line (left or right diagonally).
4. If you feel that the data are now finely divided, then construct a line base on the x marks you're placing
5. Then you will notice how far or near your date points are by simply looking at the points near the constructed line that you created.
6 0
2 years ago
Read 2 more answers
If a company changes from full-cost pricing to variable-cost pricing but retains the same markup percentage, their net income wi
NeX [460]
If a company changes from full-cost pricing to variable cost pricing but retains the same markup percentage, their net income will likely increase. Although variable cost pricing is risky since the price will be dependent on the other factors of the product. 
3 0
2 years ago
Identify the type of function graphed to the right. linear exponential other For an increase of 1 in the x-value, what is the in
8090 [49]

Answer:

Linear

For an increase of 1 in the x-value, what is the increase in the y-value? 2

8 0
2 years ago
Read 2 more answers
Other questions:
  • a triangle has sides of 4 and 6 units. The measurement of the longest side is missing.Ted says that one possibility for the unkn
    15·1 answer
  • Which classification best represents a triangle with side lengths 6 cm, 10 cm, and 12 cm? acute, because 62 + 102 &lt; 122 acute
    13·2 answers
  • One option in a roulette game is to bet $2 on red. ​ (There are 18 red​ compartments, 18 black​ compartments, and two compartmen
    9·1 answer
  • ABCD is a parallelogram. E is the point where the diagonals AC and BD meet. Prove that triangle ABE is congruent to triangle CDE
    8·2 answers
  • A city distributes vehicle identification stickers using a combination of letters followed by a combination of​ digits, each of
    9·1 answer
  • The data below represents the scores in a golf tournament. If the mean is 70 with a standard deviation of 4.9, circle all values
    15·1 answer
  • I was told that if I had perfect attendance, I would get an extra 4% in my check as a bonus. Therefore, if I earned $960.00 befo
    15·1 answer
  • the crack on the liberty Bell is approximately 24.5 inches long. if a model of the liberty bell uses a scale of 3 inches = 5 fee
    9·1 answer
  • A healthcare provider monitors the number of CAT scans performed each month in each of its clinics. The most recent year of data
    6·1 answer
  • Wyatt is going to a carnival that has games and rides. Each game costs $1.25 and each ride costs $2.75. Wyatt spent $20.25 altog
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!