Munroe Corporation sells Nautilus equipment for $399.95. Munroe marks up the equipment 30% on the selling price. What did the equipment cost Munroe? Round to nearest cent.

Question

anonymous · Answer

nautilus equipment?! lol 
when was this written, 1981?

e.cociuba · Answer

AFTER markup, the price is 399.95.  What was the price BEFORE it was marked up 30% ? 

P + 0.30P = 399.95
or
1.30P = 399.95 
Hope this helps.

anonymous · Answer

to increase a number y 30%, multiply it by $1.3$ 
you don't know what the cost is, but if you multiply it by $1.3$ you get 399.99 so set 
$$1.3x=399.99$$ and solve for $x$ by diving $399.99$ by $1.3$