Sunday

December 21, 2014

December 21, 2014

Posted by **Francheska** on Tuesday, November 7, 2006 at 5:42pm.

Solve the following system of equations using any method.

y=1/2x+3

y=1/3x-2

Try substituting the equations.

if y=1/3x-2, then

1/3x-2 = 1/2x+3

Solve for x, then plug your solution in for y

Does x=4 and y=2

No. It's going to be tricky dealing with the fractions. Get all of your x terms on one side and your "regular" numbers on the other side.

CAn you give me x so that I can find y?

Cause I did it and got x=3.4

Me too.Are you Danny from Mrs.Pfeiffer's 4th period?Oh Danny!I know you!Yeah AMy hlp him too,we are both in the same class.

Set the two equations equal to each other.

1/2x + 3 = 1/3x - 2 (If both are equal to y, they must be equal to each other.)

Condense the x's and the whole numbers to different sides. You will have to find the least common denominator:

1/2x - 1/3x = -3 -2

3/6x - 2/6x = -5

1/6x = -5

To solve, multiply each side by 6 (the reciprocal of 1/6)

You should get x = 30

Does that make sense?

Yes,thank you!So then does y=23

If y= 1/3x - 2, then plug in x.

If x = -30, then

y = 1/3 (-30) - 2

y = -10 - 2

y = -12

Try plugging in x in the second equation. Both y's should be equal.

Thank you so much!Can you please help me with this one?:

Write one or two equations to represent the situation below. Solve the equation(s). Show all your work.

Two cars leave town going in opposite directions. The car heading north travels at 55 mph. The car heading south travels at 75 mph. How long will it take them to get 715 miles apart?

**Answer this Question**

**Related Questions**

Math - I am stuck on trying to figure out how to do this question. Could someone...

Math - Write two equations that have your two integers as solutions. Show how ...

Vectors - Could you please help me solve this question: Solve this system of ...

Linear Equations - Can you please help solve this equation using the ...

Math - Please help! x-2y+z=7 2x+y-z=0 3x+2y-2z=-2 a. Solve the above system of ...

MATH - system of linear equation The sum of 3 numbers is 14 the largest is 4 ...

math - 1. Select any two integers between -12 and +12 which will become ...

Math - solve the system of linear equations using the addition method. Can you ...

Math 116 - Consider the following system of equations. y=2x-2 y-2x=9 What can ...

Geometry :( - this maths problem is wrecking my head.... 1.find the points of ...