Hello! So, the train travels 80 miles in an hour. 90 minutes is equivalent ot 1 ½ hours. In case you don't know, ½ of 80 is 40. To find the distance gone in 90 minutes, we can just add 80 and 40. 80 + 40 is 120. Another way to solve it is to multiply 80 by 1.5 and you would still get the same answer. There. The train will have gone 120 miles in 90 minutes.
The answer is 40 square root of 6.
If his heart rate slows down then he needs to continue doing what he's doing to keep his heart rate steady
2 eggs are needed because if you need 4 to make 2 batches, you have to divide 4 by 2.
The answer is 2
One Solution
6s-10= 1s
-6s -6s
_________
-10=-5s
Divide -10 and -5
You'll get 2
X=1