The 'perfect square' method is basically saying that see if the number inside the square root is a factor of a perfect square (4, 9, 16, 25, etc). But, square root of 22 is not a factor of one of these, so you just have to approximate this. We known that square root of 25 is 5, and 16 is 4. This has to be between 4 and 5 and a little bit more to the 5 side. So, we can approximately say that:
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Ryan is travelling 245 miles/3.5 hours
so 245/3.5 is 70 mph
Janelle is travelling 260 miles/4 hours
so 260/4 is 65 mph
so for each hour, they become 135 miles closer
so 910/135 is
6.75 hours they will meet
Answer:
what is y term??
Step-by-step explanation:
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Answer:
is one third of that other number, one sixth of the original number.
Step-by-step explanation: