Ask question

Ask question

All categories

Elena-2011 [213]

2 years ago

7

Mollie drinks a lot of water throughout the day! She drinks 3 and 1/2 liters of water every 2/3 of an hour. How many liters of w

ater will Mollie drink in 4 hours if she continues to drink at a constant rate?

1 answer:

Murrr4er [49]2 years ago

6 0

Answer:a gallon

Step-by-step explanation:if you add cup by cup you can see that it is a gallon by adding them or putting it in a allon jug

You might be interested in

Is math related to science? if so write a paragraph stateing how and when it was found out

nordsb [41]

Answer

In many ways, math is closely related to science. Mathematics is a scholarly domain, and so the mathematical community works as the scientific community does — mathematicians build on each other's work and behave in ways that push the discipline forward. This progress contributes to scientific breakthroughs.

Step-by-step explanation:

4 0

3 years ago

50 POINTSSSSSS PLS HELP ME ITS MATHHHHHH<br><br> dont take my points i really need this done

andrew11 [14]

Answer:

1a: 1,000,000

2a: 1

3a: 6

4a: 0

5a: 1

6a: 1

7a: 9

1b: 1

2b: 1

3b: 1

4b: 1

5b: 1

6b:49

7b: 1

Step-by-step explanation:

6 0

1 year ago

Read 2 more answers

Under her cell phone plan, Lily pays a flat cost of $55.50 per month and $4 per gigabyte. She

nlexa [21]

Answer:

Hi,can you please answer mine too it's question 9-12 I really need the answer because I have to pass it tomorrow morning:(

Step-by-step explanation:

about your question I'll put it in the comment section:)

4 0

2 years ago

Find the slope of the line that passes through the pair of points

BlackZzzverrR [31]

Answer:

undefined

Step-by-step explanation:

To find the slope through 2 points

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

= ( -4 - -3)/(3 - 3)

= ( -4+3)/(3-3)

= -1/0

Since it is a number divided by zero, the slope is undefined

7 0

2 years ago

Find the solution of the problem (1 3. (2 cos x - y sin x)dx + (cos x + sin y)dy=0.

lakkis [162]

Answer:

$2*sin(x)+y*cos(x)-cos(y)=C_1$

Step-by-step explanation:

Let:

$P(x,y)=2*cos(x)-y*sin(x)$

$Q(x,y)=cos(x)+sin(y)$

This is an exact differential equation because:

$\frac{\partial P(x,y)}{\partial y} =-sin(x)$

$\frac{\partial Q(x,y)}{\partial x}=-sin(x)$

With this in mind let's define f(x,y) such that:

$\frac{\partial f(x,y)}{\partial x}=P(x,y)$

and

$\frac{\partial f(x,y)}{\partial y}=Q(x,y)$

So, the solution will be given by f(x,y)=C1, C1=arbitrary constant

Now, integrate $\frac{\partial f(x,y)}{\partial x}$ with respect to x in order to find f(x,y)

$f(x,y)=\int\ 2*cos(x)-y*sin(x)\, dx =2*sin(x)+y*cos(x)+g(y)$

where g(y) is an arbitrary function of y

Let's differentiate f(x,y) with respect to y in order to find g(y):

$\frac{\partial f(x,y)}{\partial y}=\frac{\partial }{\partial y} (2*sin(x)+y*cos(x)+g(y))=cos(x)+\frac{dg(y)}{dy}$

Now, let's replace the previous result into $\frac{\partial f(x,y)}{\partial y}=Q(x,y)$ :

$cos(x)+\frac{dg(y)}{dy}=cos(x)+sin(y)$

Solving for $\frac{dg(y)}{dy}$

$\frac{dg(y)}{dy}=sin(y)$

Integrating both sides with respect to y:

$g(y)=\int\ sin(y) \, dy =-cos(y)$

Replacing this result into f(x,y)

$f(x,y)=2*sin(x)+y*cos(x)-cos(y)$

Finally the solution is f(x,y)=C1 :

$2*sin(x)+y*cos(x)-cos(y)=C_1$

7 0

3 years ago