Question 997898: A stereo cost $12 more than twice as much as a concert ticket. Together they cost $177. How much does each cost
Answer by addingup(3677)   (Show Source):
You can put this solution on YOUR website! stereo= ticket times 2 plus 12. I'll call the ticket x
stereo + tickets= 177 Now, in this formula, use the value above for stereo:
ticket*2+12+ticket= 177 Before we continue with the answer, now that I explained the logic, let's set in a more elegant equation form.
------------------
Let's call the ticket x:
2x+12+x= 177 Add x on left and subtract 12 on both sides
3x= 165 Divide both sides by 3
x= 55 is the price of the ticket. The stereo is:
55*2+12= 122
---------------------
Proof:
55+(55*2+12)= 177
55+(110+12)= 177
55+122= 177
177= 177 We have the correct answer
|
|
|
