Q:

Bill bought 4 pens for $12. Which of the following equations shows the relationship between the cost of pens, c, and the number of pens, x, bought? What will the cost of 20 pens be? options:c = 3x, $12x = 3c, $60c = 3x, $60x = 3c, $12

Accepted Solution

A:
Answer:The answer to your question is: c = 3x, $60Step-by-step explanation:Bill bought = 4 pens for $12equation cost vs # of pens (x)Cost of 20 pens?                            4 pens ---------------- $12                             1 pen      -------------   x                            x = 1(12)/4                           x = 3Equation :             cost = 3x20 pens will cost            cost = 3(20)                    = $60Answer : c = 3x, $60