Answer:
Step-by-step explanation:
Well its already telling you that the run is 3miles per 30 minutes so they want to know how many miles in 1 hour so we know that there is 60 minutes in an hour so 30×2=60 minutes equals 1 hour so the answer is 3×2=6mph
Answer:
1. Not possible
2. Possible
3. 24
4. C
5. D
Step-by-step explanation:
Some key concepts to remember:
- One -to -one means each element has an element only it matches to. This is only possible when sets have the same number of elements. #1 doesn't but #2 does.
- To determine the number of one-to-one correspondence, use a factorial with the number of elements. 4 is the number and the factorial is 4! = 4*3*2*1 = 24.
- n(A) means the cardinal number of the set or the number of unique elements. Elements count only once even if they repeat. There are 5 in #4 and 12 in #5.
Answer: 5 inches.
Step-by-step explanation:
Let be "x" the length of the airplane (in inches) in Will's drawing.
The first step to solve this exercise is to find the scale factor.
Since the airplane has a 100 foot wingspan and in his drawing the airplane has a wingspan of 10 inches, you get that the scale factor is:
Finally, knowing the scale factor and knowing that the airplane is 50 feet long, you can multiply this lenght by the scale factor in order to find the length of the airplane (in inches) in Will's drawing.
This is:
Its lenght in Will's drawing is 5 inches.