There is a formula for this:
Time = (Worker1 Time * Worker2 Time) / (Worker1 Time + Worker2 Time)
Time = (12 * 8) / (12 + 8)
Time = 96 / 20
Time = 4.8 Hours
Source:http://www.1728.org/work.htm
To find the surface area, you will use the formula area equals length times width to find the areas of all six shapes.
4×11, 4×5, and 11×5 are the three different areas shown. There are two of each, so 44×2, 20×2, and 55×2. 88+40+110=238 square mm.
238 square mm is the surface area.
your answer should be D because you have to multiply 3.14 times 21 times 7 to get 461.58
Answer: the answer is a
Step-by-step explanation: learned about it in 9th grade
Made 9 necklaces.
60 beads per necklace.
How many beads for all the 9 necklaces?
60 × 9 = 540
9 necklaces = 540 beads<span />
