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
Veronika [31]
3 years ago
9

Chance can wash the car in 2 hours, while Sandy can wash the same car in 4 hours. How many hours would it take for them to wash

the car together?
A. 4/3
B. 3/4
C. 3
D. 4
Mathematics
1 answer:
VashaNatasha [74]3 years ago
4 0
<span>1 hour and 1/3rd of an hour
</span>
so A is right 
You might be interested in
The CPU of a personal computer has a lifetime that is exponentially distributed with a mean lifetime of six years. a) What is th
amm1812

Answer: Our required probability is 0.39.

Step-by-step explanation:

Since we have given that

X be the exponentially distributed with mean life = 6 years

So, E[x]=6

\dfrac{1}{\lambda}=6\\\\\lambda=\dfrac{1}{6}

So, our cumulative distribution function would be

F(x)=1-e^{-\lambda x}

We need to find the probability that the CPU fails within 3 years.

P(X

Hence, our required probability is 0.39.

7 0
3 years ago
WILL GIVE BRAINLIEST find the equation of the axis of symmetry for the parabola y= -x^2-5x
timama [110]

Answer:

The axis of symmetry is -\frac{5}{2}.

  1. Check the degree of your polynomial
  2. Plug your numbers into the axis of symmetry formula
  3. Write down the equation of the axis of symmetry

Please Mark Brainliest If This Helped!

6 0
2 years ago
Car park algebra question
Svetllana [295]
You did south, north, correctly

but last one

twice north is 2 times (x+48) or 2x+96


so

s=x
n=x+48
c=4x
s+c>2x+96
subsitute s for x and 4x for c
x+4x>2x+96
5x>2x+96
minus 2x both sides
3x>96
divide both sides by 3
x>32
it cannot be equal to 32 so
the minimum value is 33 spaces in south car park
5 0
3 years ago
19038 times 8975765yud
ehidna [41]
1.7088061E11 on a calculator that's what I did

8 0
3 years ago
- A butcher combined 100 lb of hamburger that cost $1.75 per pound with 40 lb of hamburger
slamgirl [31]

Answer:

$315

Step-by-step explanation:

1.75 x 100 = $175

3.50 x 40 =$140

175 + 140 = $315

8 0
3 years ago
Read 2 more answers
Other questions:
  • BRAINLIESTTT ASAP! PLEASE HELP ME :)
    10·1 answer
  • A surveyor stands 75 feet from a building. He measures the angle of elevation to the top of the building at 67.5°. How tall is t
    13·2 answers
  • -4y+20=-x solve for y
    5·2 answers
  • Rectangular classroom seats 72 students. If the seats were rearragned with 3 more seats rows in each row, the classroom would ha
    14·1 answer
  • Find the equation of the parabola with its vertex at the origin and focus at (–3, 0).
    10·2 answers
  • PLEASE HELP! Pam bought 6.5 pounds of apples for $16.19. If the equation 6.5x=16.19 models the situation, what does the variable
    5·1 answer
  • Solving a decim For his long distance phone service, Justin pays a $3 monthly fee plus 11 cents per minute. Last month, Justin's
    12·1 answer
  • If m(x) = x+5/x-1 and n(x)=x-3, which function has the same domain as (m o n)(x)?
    5·1 answer
  • A red balloon is 40 feet above the ground and rising at 2 feet per second. At the same time, a blue balloon is 60 feet above the
    13·1 answer
  • HELP pleeeeease, will give brainliest
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!