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Someone help quick I don’t know if I’m right on the question

Someone help quick I don’t know if I’m right on the question-example-1

2 Answers

3 votes

Answer:

It is 14 cents per minute

Explanation:

We already have a ratio of

14:100

so we can divide it to get down to one to make it easier

.14:1

so it will be 14 cents per minute

hope this helps :)

User Awulf
by
4.9k points
0 votes

Answer:

About 6 cents per minute

Explanation:

Looking at the actual minutes and cost of the plan you can see this. Let's start with the first minutes given (100 with $14) which then goes to 200 with $20. There is a difference of 100 between the two and a difference of 6 with 14 and 20. If you would do 100*0.06 (6 cents) then you would see that for every 100 minutes there would be $6 being paid, in which is the difference between all the bottom numbers when going from left to right.

A more algebraic way to do this is by finding the slope from points we can make from the table (for example 100,14 , 200,20 , 300,26...). now let;s find the slope in which the two points (100,14) and (200,20) share. Using the slope formula
(y2-y1)/(x2-x1) we substitute in our values so that the new equation would look like
(20-14)/(200-100) which when adding like terms makes it
(6)/(100) or in this case 0.06. The slope would be 0.06 and therefore every minute that is on the phone, $0.06 will be added to the bill.