Answer: option A is the correct answer.
Step-by-step explanation:
The expression that relates revenue, profit and cost is
Profit = Revenue - Cost
The revenue from selling x shirts is r(x) = 11x. The cost of buying x shirts is c(x) = 6x + 20. Therefore,
p(x) = r(x) - c(x)
p(x) = 11x - (6x + 20)
By expanding the bracket, the minus sign will alter each term in the bracket. Therefore,
p(x) = 11x - 6x - 20
p(x) = 5x - 20
Answer:
Step-by-step explanation:
Answer: <u>x=11</u>
Step-by-step explanation:
Set the two equations equal to each other
5x+9 = 6x-2
9=x-2
11=x
x=11
X will need to be 11 in order to make the two equations equal to each other
A trapezium has a pair of parallel sides.
Answer:
x = 15
Step-by-step explanation:
you have a straight line and a straight line measures 180. You have a 90 degree symbol.
180 = 90 + 47 + 2x + 13
180 = 150 + 2x Subtract 150 from both sides of the equation
30 = 2x Divide both sides by 2
15 = x
