1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
n200080 [17]
3 years ago
15

1/y - 1/x = 1/60 3y - 2x = 6 (Simultaneous question)

Mathematics
1 answer:
Daniel [21]3 years ago
6 0

1y - 1/x = 1/60 = x*y =60 = x=60/y

3y - 2(60/y) = 6

3y^2-120=6y

3(y^2-40-2y) =0

y^2-40-2y=0

y = 7.4


3(7.4)-2x=6

22.2-2x = 6

2x = -16.2

x = -8.1



You might be interested in
I really need the help please and thank you
eimsori [14]

Asnwer: C

-------------------------------------

3 0
3 years ago
1.hi students I have a question for you
katen-ka-za [31]

Answer:

the answer of given question is $400.

6 0
2 years ago
A 120-watt light bulb uses about 0.1 kilowatt of electricity per hour. If electricity costs $0.20 per kilowatt hour, how much do
saveliy_v [14]
There is no such thing as a "kilowatt per hour". If that's actually what the question says, then it's a defective question, and you should put it away before it makes you any more confused. A 120 watt light bulb uses exactly 0.12 kilowatt when it's turned on. In one hour, it uses (0.12 kilowatt) x (1 hour) = 0.12 kilowatt-hour of energy. If energy costs $0.20 per kilowatt-hour, then the cost is (0.12) x (0.20) = 2.4 cents. (0.024 dollar)
8 0
3 years ago
Jacob can take any one of three routes from school to the mall, and one of five possible routes from the mall to his house. If h
nekit [7.7K]

Answer:

15 routes

Step-by-step explanation:

3 x 5 = 15 routes

8 0
2 years ago
Repeated subtraction
bixtya [17]
More detail. Please!!!!!!!!!

4 0
3 years ago
Other questions:
  • Tyrell read 72 pages in 2 hours. At this rate, how many hours will it take him to read 285 pages?
    7·1 answer
  • 49.564 expanded form using fraction or decimal
    6·1 answer
  • Let’s think of it another way so that we can see the impact of compounding on this investment. For simplicity’s sake, we’ll assu
    14·1 answer
  • PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((
    10·2 answers
  • Thnx for the last one❤️❤️
    14·1 answer
  • Find the value of x in the shape below.
    5·2 answers
  • Given that a = 17 m and b = 7.6 m, work out X.
    15·1 answer
  • What is a linear equation that contains these points?​
    10·1 answer
  • La distancia de la Tierra a Saturno es 5.95 x 108 y la distancia de la Tierra a Júpiter es 8.87 x 108. ¿Cuánto es la suma de las
    14·1 answer
  • Which number produces a rational number when multiplied by 1/2
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!