C 22/-3
You use the the equation to plug it in and c is the only fraction that plugs in and equals -27.
12 mins
60 mins per hour
we are trying to find an equivilent fraction that has 60 in the bottom
so
(5 and 1/2)/12=x/60
multiply both sides by 60
330/12=x
divide
27 and 1/2=x
she read 27.5 pages per minute
The answer is -6. Thought there is a chance I am wrong. Need an explanation?
Using simultaneous equation,
a=-1, b=1, x=1, y=0
OR
a=1, b=-1, x=1, y=0.