x | y
-
2 | 10
4 | 20
6 | 30
just plug the x values (2,4,6) into x in the equation and you get your y! example would be y=5(2) so y=10
Answer:
I prefer to express solutions to inequalities using interval notation. Both formats are are important but I think interval notation is easier to understand and represents better the solutions.
For example, if you have the following inequation:
x-2> 1
x>3
Therefore, the solution could be written either x>3 OR (3, +inf). But what happens if the solution to the system of equation is x>3 or x<-3? The solution can be easily written as: (-inf, -3) U (3, inf) instead of <em>'x>3 or x<-3' </em>which is more confusing.
777 divided by 42 is... 18.5
555 divided by 42 is... 13.21
3rd that is it :( (hope this helps)
To get who is the fastest between Robin and Bluebird we need to write the speed in the same units, either miles per hour or feet per second. Writing Robin's speed in feet per second we shall have:
1 mile=5280 ft
thus 90 mph in ft/sec will be:
(90*5280)/3600
=132 ft/sec
given that:
132ft/sec<121ft/sec, we conclude that Robin is faster than Bluebird
