Nancy’s 50-meter freestyle swim time was 28.004 seconds. betty’s 50-meter freestyle swim time was 27.949 seconds. what was the difference between nancy’s and betty’s swim times?
0.088 second
0.055 second
0.099 second
0.801 second

B. 0.055 second.

Step-by-step explanation:

We have been given that Nancy's 50-meter freestyle swim time was 28.004 seconds. Betty’s 50-meter freestyle swim time was 27.949 seconds.

To find the difference between Nancy’s and Betty’s swim times, we need to subtract 27.949 from 28.004.

Therefore, the difference between Nancy’s and Betty’s swim times is 0.055 second and option B is the correct choice.

529 and 531

step-by-step explanation:

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58