Kerri ran the same distance in four different races. Her times were 18.04 seconds, 21.39 seconds, 12.99 seconds, and 14.14 secon

Question

3 years ago

5

ds. If the individual times are rounded to the nearest one-tenth of a second, what is the estimate of Kerri's total time for all four races?

2 answers:

Delvig [45] · Answer 1 · 2022-06-19T06:40:17+03:00

8 0

16.64 average of the four races that kerri ran in seconds.

Marrrta [24] · Answer 2 · 2022-06-19T08:37:21+03:00

Answer:

The estimate rounded to the nearest one-tenth of a second is 66.6 seconds

Step-by-step explanation:

To find the total time T for all of the four races, we sum the time of each race.

So T = 18.04+21.39+12.99+14.14 = 66.56 seconds.

Now we have to round to the nearest one-tenth of a second, which is the first decimal value.

If the second digit was between 0 and 5(it means 66.50, 66.51, 66.52, etc) the total time would be rounded to 66.5 seconds

Since the second digit is 6, the time is rounded to 66.6 seconds.