Solving the second equation for y..
2x-y=7 divide both sides by -1
y-2x=-7 add 2x to both sides
y=2x-7
When a solution exists, y=y, so we can say:
2x-7=2x+3 subtract 2x from both sides
-7=3
-1 != 3
Since the above is never true, there are no solutions to this system of equations.
Intuitively, this is because both lines have the same slope, they are parallel, and have an different y-intercept, thus they will never cross each other...
Answer: 8x^4.5, 4x^3
Step-by-step explanation:
1/10 of 200 is 20
1/4 of 200 is 50
20+50=70
200-70=130 peanuts
Answer:
(x+1) (2x +3)
Step-by-step explanation:
11:30 and 1:00
assuming that it is
11:30 AM to 1:00 PM and not 11:30 AM to 1:00 AM
11:30 to 1:00 cannot be directly counted
the hours go like this
1,2,3,4,5,6,7,8,9,10,11,12=AM
then after 12AM then
1,2,3,4,5,6,7,8,9,10,11,2=PM
60 minutes in 1 hour so
11:30=11 hours and 30 mins
how far to 12 AM?
12 AM=12 hours=11 hours and 60 minutes
11 hours and 60 minutes-(11 hours and 30 mins)=30 minutes
then from 12 AM to 1 PM=1 hour so
time total difference is 1 hour and 30 minutes
