SOLUTION: The total cost of a TV and a VCR is $890. If twice the cost of the VCR is $70 more than the cost of the TV, how much does the VCR Cost? Thank You

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: The total cost of a TV and a VCR is $890. If twice the cost of the VCR is $70 more than the cost of the TV, how much does the VCR Cost? Thank You      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 349179: The total cost of a TV and a VCR is $890. If twice the cost of the VCR is $70 more than the cost of the TV, how much does the VCR Cost? Thank You
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Let v be the price of the VCR and t be the price of the TV
You are told
v+%2B+t+=+890
2v+=+t+%2B+70 so
2v+-+70+=+t
Substitute this last equation's value for t into the first equation
v+%2B+%282v-70%29+=+890
3v+-+70+=+890
3v+=+960
v+=+320
If v is 320, then 2%2A320+-+70+=+t
So 640+-70+=+t
570+=+t
Check your answer, does 320+570 = 890?