Step-by-step explanation:
value of x is 7
hope this answer helps you dear....take care!
Part A: Write equations to represent Company A and Company B's total charges for cleaning to certain carpet area in a day. Define the variable used in the equations. (4 points)
First we define the variables:
x = square foot of carpet area
y = price in $
We now write the equations for each company:
Company A:
y = 0.40x + 22
Company B:
y = 0.60x + 18
Answer:
Company A:
y = 0.40x + 22
Company B:
y = 0.60x + 18
Part B: Which company would charge less for cleaning? 500 square feet of carpet area? Justify your answer. (3 points)
We use the contracted equations in part A and substitute x = 500
We have then:
Company A:
y = 0.40 * (500) +22
y = 222 $
Company B:
y = 0.60x + 18
y = 0.60 * (500) +18
y = $ 318
Answer:
company A would charge less for cleaning 500 square feet of carpet area
Part C: How much money is saved by using the services of Company A instead of Company B for cleaning 200 square feet of carpet area? (3 points)
Company A:
y = 0.40 * (200) +22
y = $ 102
Company B:
y = 0.60x + 18
y = 0.60 * (200) +18
y = $ 138
Then,
138-102 = 36 $
Answer:
is saved about 36 $ by using the services of Company A instead of Company B for cleaning 200 square feet of carpet area
F(3) = 5 [5-3=2 diff]
f(4) = 8 [8-4=4 diff] (or 2 times larger than f(3)’s diff)
If that holds true, then continue the pattern:
f(5) = 13 [2 times f(4) diff = 8 so 5 + 8 = 13]
f(6) = 22
f(7) = 39
f(8) = 72
The only problem with my answer is that it could be times 2 or ^2. My answer above assumes times 2.