QR Full exam 1 Flashcards
1
Q
How do you know if number is odd through prime factors?
A
If prime factors include 2, EVEN, otherwise ODD
2
Q
Sum of numbers odd or even?
A
2 numbers = EVEN, odd numbers (3 numbers) = ODD
3
Q
Square of an odd / even number?
A
odd -> ODD
even -> EVEN
4
Q
what is the rate of two/three things operating at a different rate together?
machines / worker working together: how to use rates?
A
the sum of those rates (will be a faster rate!)
you sum rates!!! (= production / time)
5
Q
find time to write one page if you write 1/3 page in an hour
A
pages per hour: 1h = 1 page:xh
rate:1h = number:xh
6
Q
When is this property true?? |x-y| > |x| - |y| ?
A
When either x or y are negative!!!
6
Q
When is this property true?? |x-y| > |x| - |y| ?
A
When either x or y are negative!!!
