What is the LCM of 70 and 36?

LCM = 2 × 2 × 3 × 3 × 5 × 7

= 1260

Step-by-step explanation:

2 70 36

2 35 18

3 35 9

3 35 3

5 35 1

7 7 1

1 1

LCM = 2 × 2 × 3 × 3 × 5 × 7

= 1260

the bolded word " farsighted" could be replaced with visionary.

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours