You buy dog biscuits at the bulk rate price of $2.25 per pound. The scale shows the weight of 25 biscuits. Find the cost of 40 biscuits. Explain how you found your answer
Accepted Solution
A:
Answer: price of 40 biscuits = $2.7
Explanation: The scale is shown in the attached image. 1- Based on the scale, 25 biscuits weigh 0.75 pounds We can use cross multiplication to know the number of biscuits that weigh exactly one pound as follows: 25 biscuits ...........> 0.75 pounds ?? biscuits ..........> 1 pound number of biscuits = (1*25) / 0.75 = 33.3334 biscuits
2- We know that the price of 1 pound of biscuits is $2.25. This means that the price of 33.334 biscuits is $2.25. We can again use cross multiplication to know the price of 40 biscuits as follows: 33.3334 biscuits ...............> $2.25 40 biscuits .......................> ?? price = (40*2.25) / 33.3334 = $2.7