Question

A set of six pans cost $2.34 a set of 20 pens is sold at the same unit price what is the cost for 20 pens

Answer 1

The cost for 20 pens is $7.80.

Step-by-step explanation:

To find the cost for 20 pens, we can set up a proportion using the given information. If a set of 6 pans costs $2.34, then we can say that 1 pan costs $2.34/6 = $0.39. We can use this unit price to find the cost for 20 pens. Since the unit price for the pans and pens is the same, we can set up the proportion: $0.39/1 pen = x/$20 pens. To solve for x (the cost for 20 pens), we can cross multiply: $0.39 * $20 pens = 1 pen * x. Simplifying, we get $7.80 = x. Therefore, the cost for 20 pens is $7.80.

Answer 2

you set up a proportion of 2.34/6=x/20
then you cross multiply and get 6x=46.8
then you divide by 6 to isolate x and you get 7.8
so your answer would be $7.80