P0tential
P0tential
03-05-2018
Mathematics
contestada
After how many hours does he break even?
Respuesta :
mkryukova19
mkryukova19
03-05-2018
25+30x=5x²-10
5x²-30x-35=0
x²-6x-7=0 -7=-7*1, -6=-7+1
(x-7)(x+1)=0
x-7=0,
x=7 hours.
x+1=0, x=-1 (we cannot take negative for hours)
So, answer is 7
Check
y=25+30*7=235
y=5x²-10= 5*7²-10=245-10 =235
Answer Link
VER TODAS LAS RESPUESTAS ( 54+ )
Otras preguntas
Answer questions: 1.1 x-intercepts y-intercept and vertical asymptotes Then 1.2 the domain and range 1.3 other asymptote and the end behavior
If you swim beneath the surface in saltwater, will the pressure be greater than in freshwater at the same depth? Why or why not?
Which subatomic particle has no charge?A.) ElectronB.) NeutronC.) ProtonD.) Ion
Find the values of x and y in the diagram below. (4x-7) 86° (7y-1)⁰ (9x + 4)
Caviar are the eggs of the fish. The eggs are stored in brine, or saltwater solution. Which statement describes the importance if storing the caviar in brine in
larantWater(sugar)Carbondioxide29. The energy released in this process was originally present in1) sunlight and then transferred to sugar2) sunlight and then tr
Find a two-digit number such that three times the tens digit is 2 less than twice the units digit, and twice the number is 20 greater than the number obtained
Caviar are the eggs of the fish. The eggs are stored in brine, or saltwater solution. Which statement describes the importance if storing the caviar in brine in
The slope of the line whose equation is 2x + 5y + 1 = 0 is0-2750-1/5O5/2
A rectangle has a length of 26 inches and a width of 14 inches. If 1 inch = 2.54 centimeters, find the area of the rectangle in centimeters. Round the answer to
