Answer:
see below
Step-by-step explanation:
1.the equations have different slopes? They will intersect at one point so one solution
2.the equations have the same slope and different y-intercepts. They are parallel lines with a different y intercept so they will never intersect - no solutions
3.the equations have the same slope and same y-intercepts. they are the same line so they have infinite solutions
14/15=28/30
1/2=15/30
28/30-15/30=13/30
the answer is 13/30 because you need to find the LCD(least common denominator) in order to minus，the LCD of 15 and 2 is 30 so you get 28/30 minus 15/30 and you get 13/30
If you multiply 4 by 4 tenths, the answer is 1.6
tenth = 0.1
four tenths = 0.4
4(0.4) = 1.6
