Brooke and Lamont ran a half marathon. Brooke finished in 1 hour 55 minutes. Lamont finished in 125 minutes. who had the faster time?

Brooke finished faster

Step-by-step explanation:

Brooke: 60m(1 hr)+55m=115m

Lamont: 125m

Brooke

Step-by-step explanation:

I25 minutes is 2 hours and 5 minutes. Brooke finished faster.

answer: 298143

step-by-step explanation:

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.