Question

the cheese that ms.carter used to buy costs $6.00 per pound, but it's been marked up 15%. how much did it cost her to buy 2.6 pounds of cheese at the old price?

Answer 1

The cost to buy 2.6 pounds of cheese at the old price was $13.565217...

Explanation

Lets assume, the old price of the cheese is $x$ dollar per pound

Now it is marked up by 15%, so the marked up amount will be: 15% of $x$ $= 0.15x$

So, the new price of the cheese $=(x+0.15x)= 1.15x$ dollar per pound, which is also given as $6.00 per pound

Then , $1.15x = 6.00 \\ \\ x = \frac{6.00}{1.15}= 5.217391....$

Thus, the old price of the cheese is $ 5.217391... per pound

So, the cost to buy 2.6 pounds of cheese at the old price $= (5.217391... *2.6) =13.565217...dollar$

Answer 2

Old price - 6.00 per pound

Cost for 2.6 pounds = 2.6 x 6.00
                                = 15.60 dollars