Math

QuestionA cab charges \4permile,withanarithmeticfare.Findfaresfor4,5,and6miles:4 per mile, with an arithmetic fare. Find fares for 4, 5, and 6 miles: \mathrm{f}(4),, \mathrm{f}(5),, \mathrm{f}(6)$. Write a recursive rule.

Studdy Solution

STEP 1

Assumptions1. The fare for1 mile is 4.Thefareformilesis4. The fare for miles is 7.503. The fare for3 miles is $114. The fare increases in an arithmetic sequence

STEP 2

First, we need to find the common difference of the arithmetic sequence. We can do this by subtracting the fare for1 mile from the fare for2 miles.
d=Farefor2milesFarefor1miled = Fare\, for\,2\, miles - Fare\, for\,1\, mile

STEP 3

Now, plug in the given values for the fares to calculate the common difference.
d=$7.50$d = \$7.50 - \$

STEP 4

Calculate the common difference.
d=$7.50$4=$3.50d = \$7.50 - \$4 = \$3.50

STEP 5

Now that we have the common difference, we can find the fare for4 miles. This can be done by adding the common difference to the fare for3 miles.
arefor4miles=Farefor3miles+dare\, for\,4\, miles = Fare\, for\,3\, miles + d

STEP 6

Plug in the values for the fare for3 miles and the common difference to calculate the fare for4 miles.
arefor4miles=$11+$3.50are\, for\,4\, miles = \$11 + \$3.50

STEP 7

Calculate the fare for4 miles.
arefor4miles=$11+$3.50=$14.50are\, for\,4\, miles = \$11 + \$3.50 = \$14.50

STEP 8

Similarly, we can find the fare for5 miles by adding the common difference to the fare for4 miles.
arefor5miles=Farefor4miles+dare\, for\,5\, miles = Fare\, for\,4\, miles + d

STEP 9

Plug in the values for the fare for4 miles and the common difference to calculate the fare for5 miles.
arefor5miles=$14.50+$3.50are\, for\,5\, miles = \$14.50 + \$3.50

STEP 10

Calculate the fare for5 miles.
arefor5miles=$14.50+$3.50=$18are\, for\,5\, miles = \$14.50 + \$3.50 = \$18

STEP 11

Finally, we can find the fare for6 miles by adding the common difference to the fare for5 miles.
arefor6miles=Farefor5miles+dare\, for\,6\, miles = Fare\, for\,5\, miles + d

STEP 12

Plug in the values for the fare for5 miles and the common difference to calculate the fare for6 miles.
arefor6miles=$18+$.50are\, for\,6\, miles = \$18 + \$.50

STEP 13

Calculate the fare for6 miles.
arefor6miles=$18+$3.50=$21.50are\, for\,6\, miles = \$18 + \$3.50 = \$21.50The meter will display .50formiles,.50 for miles, 18 for5 miles, and $21.50 for6 miles.
The recursive rule for the context isf(n)=f(n)+$3.50f(n) = f(n-) + \$3.50where n is the number of miles and f(n) is the fare for n miles.

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