Answer:
Step-by-step explanation:
Given that the number of males in the classroom is three more than twice the number of females.
the total number of students is 57
Let x be the no of males then no of females = 
Also we have 3 more than twice no of females as

This equals x

No of males = 39, no of females = 18
-0.75 is a rational number because it can be expressed as the fraction -3/4 and it is an integer
It has one solution that I know of
Answer:
D
Step-by-step explanation:
none of the option satisfy the equation
Sixty miles over four gallons would reduce down to 15 miles over one gallon which would 15 miles per gallon.