# math,correction

posted by .

Find four solutions for the equation
3x+5y=15

so the equation will turn to be
y=-(3)/(5)x+ (3)

and when i do the table i get these points for the solution

(-2,4.2),(-1,3.60),(0,3),(1,1.8)

ok

Let me give you a help.

Take the slope, denominator. 5. Now make each x an multiple of 5, say 0,5, 10, 15, -5
It makes it so easy to multiply in your head.

Find four solutions for the equation
3x+5y=15

Assuming you are seeking integer answers:

Dividing through by 3 yields x + y + 2y/3 = 5

2y/2 must be an integer as does y/3 so y/3 = k making y = 3k.

Substituting, 3x + 15k = 15 making x 5 - 5k

k.....0.....1.....2.....3
x.....5.....0....-5....-10
y.....0.....3.....6.....9

The only positive solutions exist between (5,0) and (0,3)on the line defined by y = (15 - 3x)/5

There are no integer solutions between these two points but there are an infinite number of rational solutions.

x.....0.....1.....2.....3.....4.....5
y.....5....2.4...1.8...1.2....6.....0

x....5....3.33..1.66...0
y....o.....1.....2.....3

## Respond to this Question

 First Name School Subject Your Answer

## Similar Questions

1. ### CountIblis, can i bother you

Countiblis, i know that you might be busy do you mind if i ask you the following for help.Only if you can please. can you explain to me just one more thing so i can undestand it. Now i have an equation which is : 3x = 3x + 5 which …
2. ### math, correction

the equation is and directions are: graph x-y=-2 so then the equation would really be: y=-x+2 and from here i would do the table to plot the points. Close. y=x+2, not -x+2. Then, yes, plot the points. so your saying that the equation …
3. ### math

Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. yhat = + x (ii) Graph this equation on a …
4. ### ALGEBRA

The table below shows two equations: Equation 1 |3x - 1| + 7 = 2 Equation 2 |2x + 1| + 4 = 3 Which statement is true about the solution to the two equations?
5. ### math

compare and contrast: below are two equations. solve each equation and compare the two solutions. choose the statement that is true about each solution. equation #1 2x-3=-17 5x+3=12 A. equation #1 and equation #2 have the same number …
6. ### Pre-Algebra

Equation M: y = 3x + 4 Equation P: y = 3x + 7 Which of the following options is true about the solution to the given set of equations?
7. ### Algebra

Is(0,3) a solution to the equation y=x+3 A. Yes B. No*** Is (1,4) a solution to the equation y= -2x A. Yes*** B. No Look at the following points (4,0) (3,1) (6,3) (2,-4) Which are the solutions to y= x-4?
8. ### Math (Mrs. Sue, please help?)

An equation is shown below: 4(2x - 5) = 4 Part A: How many solutions does this equation have?
9. ### ALGEBRA CHECK ANSWERS

Solve each equation by graphing the related function. If the equation has no real-number solution, write no solution. NOTE: when I write + it has a minus on the bottom too x^2+7=0 a. x= +7 b. x = +3.5 c. x= 0 d. no solution *** 3x^2=0 …
10. ### Algebra1 Word Problem HELP#2

Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 2^x and y = 4^x−2 intersect are the solutions of the equation 2^x = 4^x−2. (4 points) Part B: Make tables to find the solution to 2^x = 4^x−2. …

More Similar Questions