The key information here is the time he took to run the race - 420 seconds
We know that there are 60 seconds in 1 minute so to find the number of minutes we divide 420 by 60 to get 7.
Murad took 7 minutes to run the race
31.7 is the answer. Do you need any explanation?
(3 + 2i) + (-4 + 6i)
Get rid of the parenthesis.
3 + 2i - 4 + 6i
Note how we got rid of the (+) sign in +(-4). We do this because a negative times a positive is always going to be a negative.
Combine like terms.
(2i + 6i) + (3 - 4)
Simplify.
8i - 1
~Hope I helped!~
Answer:
Make each number on the fraction an improper fraction
Then simplify it
Then multiply the numerator and denominator
put the answer in a short term
And make sure the answer makes sense
Guess what?
I am also learning about multiplying mixed numbers too!
