1 is not. 2 is. 3 is not. 4 is. 5 is. 6 is. 7 is not. 8 is.
Step-by-step explanation:
let X = speed of slow bicycle rider
2x=speed of fast bicycle rider
3(x+2x)=72
X=8mph(slowest bicycle rider)
2x=16mph(fastest bicycle rider)
4x - 2(3x - 9)....distribute the 2 thru the parenthesis
4x - 6x + 18....combine like terms
-2x + 18 <===
Answer:
Since the -5 is a bigger number than 1 you would keep the negative and carry it to the -4.
Step-by-step explanation:
Answer:
21
Step-by-step explanation:
Add all of the numbers together then divide by 5
