Answer:

Step-by-step explanation:
1.2 ÷ 3 = 0.4 meters each
0.4 meters = 40 cm
40 cm = 400 mm
therefore,
Carlos must cut each piece of wood 400 mm each.
Hope this helps and have a great day! :D
16-4=12
12x5=60
I'm putting together assumptions as this isn't really clear to me, I apologize.
Answer:
It would be the first one or second one
Step-by-step explanation:
the answer is up ahead
Answer:
10.82 revolutions per mintue
Step-by-step explanation:
First we need the circumference of the cirkel. As you may know the formula for that is 2×pi×r, with r as the radius of the cirkel. So 2×pi×15=30pi centimeters or 94.24 centimeters. Now we will calculate the fraction of 17 centimeters on 94.24 centimeters. 17/94.24=0.18. That is how fast the wheel will spin. To get it in minutes we now do: 0.18×60=10.82 revolutions per minute.