Answer:
5:2 is the lowest you could simplify it to
Step-by-step explanation:
Answer:
Option A, Add 3 to both sides
Step-by-step explanation:
<u>Step 1: Add 3 to both sides</u>
x - 3 + 3 = -18 + 3
x = -15
Answer: Option A, Add 3 to both sides
First solve the quadratic as you would an equation, so you will get two real zeroes p and q so that (x-p)(x-q)=0 is another way of expressing the quadratic. All quadratics can be represented graphically by a parabola, which could be inverted. When the x² coefficient is negative it’s inverted. If the coefficient of x² isn’t 1 or -1 divide the whole quadratic by the coefficient so that it takes the form x²+ax+b, where a and b are real fractions. The curve between the zeroes will be totally below the x axis for an upright parabola, and totally above for an inverted parabola. This fact is used for inequalities. An inequality will be <, ≤, > or ≥. This makes it easy to solve the inequality. If the position of the curve between the zeroes is below the axis then outside this interval it will be above, and vice versa. So we’ve defined three zones. x
q, and p
If you do the math it should be -7.78725563766 which is rounded to -8
$6.50 x 10 = 65. (first 10 boxes)
$5.50 x 10 = 55. (next 10 boxes)
65 + 55 = 120. (the 20 boxes added up)
183 - 120 = 63.
63 ÷ 4.50 = 14. (63 <span>÷ by the price for each remaining box, which is $4.50)
So, 10 + 10 = 20 (first 20 boxes) then + 14 because that is the remaining boxes of pens that you can buy with $183. This equals 34.
34 boxes of pens can be bought with $183.</span>
