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 ( 53+ )
Otras preguntas
Which of the following statements are true? Choose all answers that apply: B The equation represents a proportional relationship. The unit rate of change of y w
[tex]\sf\large\green{\underbrace{\red{Question*}}}:[/tex][tex] \mathbb\blue{SOLVE} [/tex][tex] \pink{1. \: \: \: \: \: \: (3 - x)(x + 2) = 0}[/tex][tex] \
Reza and asa are dating. reza is quite shy, and he likes that asa is involved in the university and introduces him to people. asa is terrible at math, so reza,
what is three and 2 fourths and minus two and three fourths
What is the quotient and remainder, written as partial fractions, of StartFraction 15 x squared + 52 x + 43 Over 3 x squared + 5 x minus 8 EndFraction?
2 select the correct answer. the people of country x tend to save their income rather than spend on luxuries. to which value dimension does this behavior relate
Priming people with a flashed black face rather than a flashed white face makes them more likely to misperceive a flashed tool as a gun. this best illustrates t
Cara leaves her house at 10:03 and arrives at the library at 10:17. Irena leaves her house at 11:55 and arrives at the library at 12:06. Who takes longer to get
Hurry please this is to tomarrow i will give brainlyst and 100 points for the CORRECT Answer Which phrase best defines informal English? the right words for any
what is the smallest number when divided by 24 and 12 leaves remainder 12
