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
Dafna1 [17]
2 years ago
15

If it took 2 hours to clean 5 houses, how many houses could be cleaned in 6 hours? ........fast

Mathematics
2 answers:
tamaranim1 [39]2 years ago
7 0
It would be 15 houses. I hope this helps and have a great day! (Also brainliest would be appreciated but you don’t have to) :)
Helen [10]2 years ago
5 0

Answer:

3

Step-by-step explanation:

You might be interested in
Please help asap please​
Natasha2012 [34]
Answer: try 3(2p+1) factor form
7 0
2 years ago
Use the method of undetermined coefficients to find the general solution to the de y′′−3y′ 2y=ex e2x e−x
djverab [1.8K]

I'll assume the ODE is

y'' - 3y' + 2y = e^x + e^{2x} + e^{-x}

Solve the homogeneous ODE,

y'' - 3y' + 2y = 0

The characteristic equation

r^2 - 3r + 2 = (r - 1) (r - 2) = 0

has roots at r=1 and r=2. Then the characteristic solution is

y = C_1 e^x + C_2 e^{2x}

For nonhomogeneous ODE (1),

y'' - 3y' + 2y = e^x

consider the ansatz particular solution

y = axe^x \implies y' = a(x+1) e^x \implies y'' = a(x+2) e^x

Substituting this into (1) gives

a(x+2) e^x - 3 a (x+1) e^x + 2ax e^x = e^x \implies a = -1

For the nonhomogeneous ODE (2),

y'' - 3y' + 2y = e^{2x}

take the ansatz

y = bxe^{2x} \implies y' = b(2x+1) e^{2x} \implies y'' = b(4x+4) e^{2x}

Substitute (2) into the ODE to get

b(4x+4) e^{2x} - 3b(2x+1)e^{2x} + 2bxe^{2x} = e^{2x} \implies b=1

Lastly, for the nonhomogeneous ODE (3)

y'' - 3y' + 2y = e^{-x}

take the ansatz

y = ce^{-x} \implies y' = -ce^{-x} \implies y'' = ce^{-x}

and solve for c.

ce^{-x} + 3ce^{-x} + 2ce^{-x} = e^{-x} \implies c = \dfrac16

Then the general solution to the ODE is

\boxed{y = C_1 e^x + C_2 e^{2x} - xe^x + xe^{2x} + \dfrac16 e^{-x}}

6 0
1 year ago
Please help me if you can
MA_775_DIABLO [31]

Answer:

y = .025x +20

The y intercept is the value when x = o, or the starting value.  In this case, it is the temperature in degrees F at a depth of 0 meters.

Step-by-step explanation:

We have a point a (0,20) and a point at (2 , 20.05)

We can find the slope from

m = (y2-y1)/(x2-x1)

   = (20.05-20)/(2-0)

   = .05/2

     =.025

One of the points (0,20) is the y intercept  since x=0

We can use the slope intercept form of the equation

y= mx+b

y = .025x +20


The y intercept is the value when x = o, or the starting value.  In this case, it is the temperature in degrees F at a depth of 0 meters.

3 0
3 years ago
Read 2 more answers
What is the counter example for 'if you do not eat beef then you're not vegetarian'
slamgirl [31]

Answer: If you're not vegetarian, then you do not eat beef.

Step-by-step explanation:

Dismiss the 'if' and 'then':

- you do not eat beef

- you're not vegetarian

Now, all you have to do is switch their places:

- you're not vegetarian

- you do not eat beef

Now add the 'if' and 'then' back:

If you're not vegetarian, then you do not eat beef.

4 0
2 years ago
Determine if a slope of two consecutive sides are parallel or neither? ​
inessss [21]

Answer:

No

Step-by-step explanation:

Two consecutive sides means that the two sides are connected in a shape by a vertex. If the sides were parallel, they would have to be right on top of each other, so two consecutive sides cannot be parallel.

3 0
3 years ago
Other questions:
  • Solve for w<br> s=w-10e<br> -------<br> m
    7·1 answer
  • The answer is 3/2x but I don’t know how to solve it... please explain
    11·1 answer
  • A basketball game has 4 quarters. Over these 4 quarters, Lebron made 20 baskets, which included slam dunk baskets. He made 5 sla
    7·1 answer
  • If f(x) = 1 – x, which value is equivalent to |f(i)|?<br> 0<br> 1<br> √2<br> √-1
    13·1 answer
  • Cade throws a baseball from a starting height of 6 feet, with an initial velocity of 22 feet per second. Which of the following
    14·1 answer
  • (cosx - sinx)(secx + cscx) = cotx - tanx
    6·1 answer
  • Solve for y.<br><br> –4(y − 15) + –6 = –10 What does y equal
    10·1 answer
  • Write the equations of the line that passes through the point 4,3) and is perpendicular to the line y=2x−4 . Write the equation
    7·1 answer
  • Y=7x+4 find the gradient of the line
    15·2 answers
  • Can y’all help me with ! I need correct anwsers ! Please
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!