Question

Four aerial photographers will need 6 batteries to operate their drone. Each found a different website that sells rechargeable batteries.

A first quadrant coordinate plane titled Website A is shown. The horizontal axis is labeled batteries. The vertical axis is labeled cost in dollars. A dotted line is graphed through the points zero comma forty, one comma forty-two, and continues through six comma fifty-two. An advertisement is titled Website B. Zapper. Rechargeable batteries, two dollars and thirty cents each. Battery charger, thirty-five dollars.

The table is titled Website C and has two columns and six rows. The first column is batteries. The second column is cost in dollars. One battery, thirty-nine dollars and ten cents. Two batteries, forty-one dollars and twenty cents. Three batteries, forty-three dollars and thirty cents. Five batteries, forty-seven dollars and fifty cents. Six batteries, forty-nine dollars and sixty cents. A caption reads, Website D: y equals three and five tenths x plus twenty-eight.

For each website, find the cost of 6 rechargeable batteries and a charger. Which website has the best price?

Answer 1

Website B offers the best price at $48.80 for 6 rechargeable batteries and a charger, given the information provided and assuming the cost of the charger is not included on the other sites.

Step-by-step explanation:

To find the best price for purchasing 6 rechargeable batteries and a charger from four different websites, we must calculate the total cost for each option and compare them. Here's how we calculate each:

• Website A: The cost for 6 batteries can be interpolated from the given points on the graph as $52. Adding the unknown cost of a charger, we have: Total = $52 + cost of charger.
• Website B: The cost for 6 batteries at $2.30 each is 6 x $2.30 = $13.80. Adding the cost of a charger at $35, we have: Total = $13.80 + $35 = $48.80.
• Website C: The cost for 6 batteries is given as $49.60. Adding the unknown cost of a charger, we have: Total = $49.60 + cost of charger.
• Website D: Using the formula y = 3.5x + 28 where x is the number of batteries, we substitute x with 6 to get the total cost for batteries as 3.5(6) + 28 = $49. Adding the unknown cost of a charger, we have: Total = $49 + cost of charger.

Without knowing the cost of the charger for websites A, C, and D, we cannot accurately determine the total cost. However, among the options given, Website B provides a complete total of $48.80 for 6 batteries and a charger, which is the best price based on the available information.

Answer 2

Answer: The cheapest option is Website B.

Step-by-step explanation:

The cost of 6 rechargeable batteries and a charger from each website is:

Website A: 6 batteries * $52/battery = $312

Website B: 6 batteries * $2.30/battery + $35/charger = $16.80 + $35 = $51.80

Website C: 6 batteries * $49.60/battery = $297.60

Website D: 6 batteries * $3.5 x + $28 = $63 + $28 = $91

The cheapest option is Website B with a cost of $51.80.