A college bought some Apple Ipads(345$ each), twice and many Kindles(150$ each) and half as many Nooks(150$ each) as Ipads. If the total was 15,600$, how many of each reader was purchased?

Question

helder_edwin · Answer

let $x$ be the number of Ipads, then the college bought $2x$ kindles and $\frac{x}{2}$ nooks. then
$$ \large 345x+150(2x)+150\frac{x}{2}=15600 $$

anonymous · Answer

I added all those up and got 720x=15600 are you sure thats correct?

anonymous · Answer

his question looks right, just divide the right side of the equation by 720.

anonymous · Answer

A = 2K
A = N/2 -> N = 2A = 4K

345A + 150K + 150N = 15,600
345 ( 2k) + 150 K + 150 ( 4K) = 15,600