Asked by Anonymous
Two similar television sets and one DVD player cost $919.70. One television set and two similar DVD players cost $639.70. How much do three television sets cost?
Answers
Answered by
oobleck
2t+d = 919.70
t+2d = 639.70
substituting,
t + 2(919.70-2t) = 639.70
-3t + 1839.40 = 639,70
3t = 1199.70
or, you could subtract to get
t-d = 280
2t+d = 919.70
now add to get
3t = 1199.70
t+2d = 639.70
substituting,
t + 2(919.70-2t) = 639.70
-3t + 1839.40 = 639,70
3t = 1199.70
or, you could subtract to get
t-d = 280
2t+d = 919.70
now add to get
3t = 1199.70
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.