I'm guessing 90 hours because if you add their hours together it'll be 180 if they work together it'll be like half the time which is 90
This is an example of a distribution property. In a
distribution property, the number outside the parenthesis is distributed to all
the terms inside it by multiplication. So the answer here is:
<span>The 4 will be multiplied to each term inside the
parentheses.
</span>
Answer:
The first digit of a two digit number can be any of digits 1 - 9. It cannot be 0 though. Therefore there are 9 possible digits for the first place.
There are 5 possible digits for the second position. The two digit number has to be odd and therefore the final digit must be 1,3,5,7 or 9
Therefore for each and every one of the nine first digits there are 5 digits that the second can be.
Therefore ANSWER = 9 * 5 = 45 possible permutations.
2. The largest two digit number = 99
Subtract 57 and you get 42
ANSWER = 42
The forty two numbers are 58 ,59, 60, 61......98, 99
Answer:
a. 
Step-by-step Explanation:
Given:
Distance Ottawa to Québec = 425 km
Initial flight rate = v + 60
Return flight rate = v - 40
Required:
Flight times difference of the initial and return flights
Solution:
=>Flight time of the initial flight:
=>Flight time of the return flight:
=>Difference in flight times:
