28/10 = 2.8
The average thickness of her books is 2.8 cm. Hope this helped!!
You can substitute the whole equation that equals x into the other equation and solve it algebraically, with that x is 23 abd y is -2.2
Convert the fraction part of the mixed number to a decimal,Divide the numerator by the denominator.
The proportion that can be used to find the amount of tax Ben will pay is A, because an easier way to find out is multiply 0.06 to 90, and cross multiplying on A would give you the same answer. :)
Answer:
No solution
Step-by-step explanation:
Slope-Intercept Form: y = mx + b
Step 1: Write out systems of equations
-x + 3y = 3
x - 3y = 3
Step 2: Rewrite equations into slope-intercept form
3y = 3 + x
y = 1 + x/3
-3y = 3 - x
y = -1 + x/3
Step 3: Rewrite systems of equations
y = x/3 + 1
y = x/3 - 1
Since we have the same slope for both equations but different y-intercepts, we know that both lines are parallel. If that is the case, they will never touch or intersect each other. Therefore, we have no solution.