Answer:
The system has an infinite set of solutions 
Step-by-step explanation:
From the first equation:
Replacing on the second equation:
This means that the system has an infinite number of solutions, considering:
The system has an infinite set of solutions
The y-intercept (where x = 0) of the equation is at -20.
For every 60 the x runs, the y falls by -10. Use rise over run to determine the slope of the equation.
Slope-intercept form is determined by the following equation:
m is your slope, and b is your y-intercept.
Plug the slope and y-intercept into the equation.
Answer:
81
Step-by-step explanation:
27 total of pupils.
girls 1×27=27
boys 2×27=54
total 54+27=81
Answer:
It's the second one.
Step-by-step explanation:
Answer:
C. 44 °
Step-by-step explanation:
Angles on a straight line add up to 180 degrees.
180 - 88 = 92
Angles in a triangle add up to 180 degrees.
y + y + 92 = 180
y + y = 88
2y = 88
y = 88/2
y = 44
