Kylie started biking to the restaurant traveling 12 mph, after some time the bike got a flat so Kylie walked the rest of the way, traveling 2 mph. If the total trip to the restaurant took 9 hours and it was 48 miles away, how long did Kylie travel at each speed?
hours at 12 mph

hours at 2 mph

Kyle travelled 3 hours at 12 mph.

Kyle travelled 6 hours at 2 mph.

Step-by-step explanation:

Let x represent the time that Kyle spent biking.

Let y represent the time that Kyle spent walking.

If the total trip to the restaurant took 9 hours, it means that

x + y = 9

Distance = speed × time

Kylie started biking to the restaurant traveling 12 mph. Distance covered while biking would be

12x

Kylie walked the rest of the way, traveling 2 mph. Distance covered while walking would be

2y

The trip was 48 miles. This means that

12x + 2y = 48 - - - - - - - - - - -- -1

Substituting x = 9 - y into equation 1, it becomes

12(9 - y) + 2y = 48

108 - 12y + 2y = 48

- 12y + 2y = 48 - 108

- 10y = - 60

y = - 60/-10

y = 6

x = 9 - y = 9 - 6

x = 3

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.

20%

step-by-step explanation: