write and solve the following functional equation:
Class sold hotdogs at $1.75 each and sodas for $.75 each. A total of 342 items were sold. A total of $293.00 was earned. Hotdogs are X and sodas are Y.....am I on the right path here???
x+y=342
f(x)=1.75x + .75y
f(x)= .25(7x+3y)
...now I'm lost.....Do I solve for y, where y=342-x
then put 1.75x + .75(342-x) = 293
1.75x + 256 - .75x = 293
x= 293 - 256.50
x=36.5
How many of each did they sell to have sold 342 and earn $293?
Class sold hotdogs at $1.75 each and sodas for $.75 each. A total of 342 items were sold. A total of $293.00 was earned. Hotdogs are X and sodas are Y.....am I on the right path here???
x+y=342
f(x)=1.75x + .75y
f(x)= .25(7x+3y)
...now I'm lost.....Do I solve for y, where y=342-x
then put 1.75x + .75(342-x) = 293
1.75x + 256 - .75x = 293
x= 293 - 256.50
x=36.5
How many of each did they sell to have sold 342 and earn $293?