D. What must be true is the correct answer
Leftside: 5x + 3x - 15 = 8x - 15
Rightside: 8x - 15
They are exactly the same.
This means x can be any real number, i.e. infinite solutions.
I'm not really sure about the property, but combining like terms and comparison are the basic tools.
Y= 80.55% approximately, 80.6% rounded up
Calculations:
The percent (percentage) of a given number p/q can be found, for the most part, without a calculator by a slight change in the notation:
y=the number 29/36 expressed as a percent becomes
y=[29(2.7777777778 approx.)]/[36(2.7777777778 approx.)]
y=0.8055 approx. (Express the decimal numeral as a percent)
y=0.8055(100)
y=
80.55% approx., which is 80.6% rounded up to the nearest tenth percent
The slope of this line is 2. The equation would be y = 2x + 1
You can find the slope by doing rise/run. For example, look at (0, 1) then move to the next point which is at (1, 3). You moved up 2 and to the right once (2/1) which simplifies to 2.
Or you can do: y2 - y1/x2 - x1 = slope
Choose two points from the graph:
(x1, y1): (0, 1) (x2, y2): (1, 3)
Substitute into the equation:
3 - 1/1 - 0 = slope
Solve:
2/1 = slope
Simplify:
Slope = 2
Answer:
Step-by-step explanation:
"The quotient of a number and -1.5 is 21."
Let X be the "number."
X/-1.5 = 21
X = -1.5*(21)
X = - 31.5