Answer:
50%
Step-by-step explanation:
Answer: Our required linear equation would be 
Step-by-step explanation:
Since we have given that
Number of cups = 150
Cost = $20
Number of cups = 400
Cost = $45
Let x be the number of cups, y be the cost .
We will use "Equation of line using Two point slope":

Hence, our required linear equation would be 
The trick is to get the X all alone on one side. Start by subtracting 2 from both sides. This wqould give you -1/2X+2-2=-x+7-2 or simplified to -1/2x=-x+5. Next, add x to both sides to give you -1/2x+x=-x+5+x. This simplifies to +1/2x=5. Multiplying by 2 on both sides will get rid of the fraction. Therefore 2*1/2x=5*2. This simplifies to your final answer of x=10.
Answer:
Option A is the correct option.
Step-by-step explanation:
In the question the two functions are given in which function 1 is a parabola and function 2 is a straight line.
Since line intersect the parabola on two distinct points as shown the solutions of this non linear system will be two.
The coordinates of the solutions will be (0, -2) and (5, 3).
Therefore option A is the answer.
Answer:
5' 6" = 66 inches
6 feet = 72 inches
shadow to actual height ratio = 72 / 66 = 1.0909...
If the tree casts a 20 foot shadow then its height equals
20 / 1.09090909 = 18.33 feet = 18 feet 4 inches
Step-by-step explanation: