SOLUTION: Solve the following system by the addition method 0.05x + 0.10y = 1.3 and x + y = 19

Question 142276: Solve the following system by the addition method 0.05x + 0.10y = 1.3 and x + y = 19
Answer by nabla(475) (Show Source): You can put this solution on YOUR website!
0.05x + 0.10y = 1.3
x + y = 19
First I would multiply the first equation by 20 to make the x coefficient 1.
x+ 2y= 26
x+ y= 19
Now subtract the second equation from the first:
y=7
When we plug y=7 into the second equation,
x==19-7=12
Which gives us our answer.
To check,
.05(12)+.1(7)=.6+.7=1.3
12+7=19
I'll also show you how a computer script would do it:

Solved by pluggable solver: Linear System solver (using determinant)

Solve:

Any system of equations:

has solution

(x=12, y=7}

RELATED QUESTIONS
Solve the following system by the addition method. 1/2x-1/3y= -4 -1/12x+1/10y= 2... (answered by jsmallt9)

Solve the following system by the addition method. 1/2x-1/3y= -4 -1/12x+1/10y= 2 x= (answered by Fombitz)

Solve the following system by the addition method 0.05x + 0.10y = 1.3 and x + y =... (answered by checkley77)

solve by the addition method: (x/4) - (y-3) = -4 and (x/8) + (y/6) =... (answered by mananth)

Solve by the addition method: (x/4) � (y/3) = � 4 and (x/8) + (y/6) = 0 (answered by Fombitz)

Solve the following system by the addition method. 3x-7y= -12 3x+14y= -3 x=... (answered by ewatrrr)

I am having problems with solving equations. The following are equations and it's... (answered by stanbon!,AnlytcPhil)

The Addition Method Solve each system by addition. x - y = 3 -6x +6y =17 (answered by brucewill)

Please solve the system of linear equation by the addition method. x+2y=1... (answered by ankor@dixie-net.com)