Answer:
y = 2.1x +5, 21 miles
Step-by-step explanation:
We will denote miles as "x"
Since she tipped the driver $5, that is a flat rate and that will be our y-intercept. Since it costs $2.10 per mile, we need to multiply that number by the number of miles
So our equation will be y = 2.1x +5
In order to figure out how many miles Ann lives from the airport, we need to substitute y for her grand total that she was charged
This gives us 49.10 = 2.10x + 5
First we need to subtract 5 from each side to get 44.10 = 2.10x
We then need to divide both sides by 2.10 to get 21 = x
Ann drove 21 miles
Answer:
-51
Step-by-step explanation:
Brand X: median value is 13. Look carefully at the diagram so that you can spot and understand where that value comes from.
Brand Y; median value is 16.
We can conclude that the life of Brand Y batteries is always greater than that for Brand X, and that the medians differ by 3 hours.
C. 9y + 13
9y is the same as 9 times y (a variable representing a number), + 13
