Let xy=3 and dy/dt=4. Find dx/dt when x=5

Answers

Answer 1

Answer:

xy = 3

d/dt(xy) = d/dt(3)

ydx/dt + xdy/dt = 0

y = 3/x so substitute 3/5 for y, 5 for x, and 5 for dy/dt; and solve for dx/dt.

3/5(dx/dt) + 5(5) = 0

3/5(dx/dt) = -25

dx/dt = -125/3

Step-by-step explanation:

this should be able to help you :)


Related Questions

6^9 divided by 6^7 what’s the answer?

Answers

Answer:

6^2

Step-by-step explanation:

6^9:6^7 = 6^(9-7) = 6^2

210 minutes- = how many minutes ?

Answers

Answer:

210?

Step-by-step explanation:

join remind class code is d394k3. it is just for fun.

Answer:

3 and a half hour; 3 hours 30 minutes

Step-by-step explanation:

have a nice day :)

Find the Y and X interprets for:
5x-10y= 30

Answers

Answer:

x-intercept: 6

y-intercept: -3

Step-by-step explanation:

5x - 10y + 30

Start with: 5x = 30

divide the 5 with 30:

5x = 30

5       5

and 30 divide 5 is 6.

then do: -10y = 30

-10y = 30

-10     -10

30 divide -10 is -3.

I don´t really know how to explain it but yeah, there you go

Anyways, have a nice day and your welcome!

Help me with my math ASAP!!!!

Answers

Answer:

[tex]f[/tex] = 78

[tex]g[/tex] = 3.5

Step-by-step explanation:

First we need to find [tex]f[/tex].

We can use the equation [tex]72 + (f + 30) = 180[/tex] to solve for [tex]f[/tex].

We can then change that equation to [tex]72 + f + 30 = 180[/tex], since the Commutative Property of Addition says that you can have any addition in any order.

Now, we can solve the equation.

[tex]102 + f = 180\\(102 - 102) + f = 180 - 102\\f = 78[/tex]

Now that we solved [tex]f[/tex], we can now solve for [tex]g[/tex].

Since 25 equals [tex]8g -3[/tex], we can solve the equation [tex]8g - 3 = 25[/tex].

Here is how you solve it:

[tex]8g - 3 = 25\\8g + (-3 + 3) = 25 + 3\\8g = 28\\g = \frac{28}{8}[/tex]

Since [tex]\frac{28}{8}[/tex] equals 3.5, which is the simplest form, that is the answer.

Hope this helps, and please mark me brainliest! :)

The Value of x is???

Answers

Answer:

30

Step-by-step explanation:

WILL GIVE BRAINLIEST ASAP PLZ

Answers

Answer:

Therefore the answer is B)

Step-by-step explanation:

so we have to find the inverse function.

g(x) = -1/(x-2) +3

y = -1/(x-2) +3

x = -1/(y-2)+3

x - 3 = -1/(y-2)

(x - 3)^-1 = -(y-2)^-1*-1

1/(x-3) = -y+2

1/(x-3) -2 = -y

-1(-y) = -1[1/(x-3) -2]

y = -1/(x-3) + 2

or y = 1/(-x+3) + 2

Matches B)

Complete the square to solve the equation below.
Check all that apply.
x2 - 10x - 4 = 10
A. -10- 724
B. 10+ 1/24
C. 5- 39
O D. 5+ 39

Answers

Answer:

c and d

Step-by-step explanation:

Answer:C and D

Step-by-step explanation:

HELP PLEASE (20 Points & Brainliest)
If cot A is undefined, then A =?

P.S. If you respond just for points, you will be reported.

Answers

Answer:

the answer is 1/0

Step-by-step explanation:

don't forget to brainllest:)

will be marking brainlest if you can help me in under 10 minutes :DD

Answers

Answer:

The dvd rentals cost more than the viddeo game rentals

Step-by-step explanation:

these are the steps taken to produce a final result

Answers

Answer: The answer is procedure

Step-by-step explanation:

A procedure is a process that happens

PLEASE HELP WILL GIVE brainliest if it helps :)

A school vending machine sells cartons of milk and juice. On a typical day: INo cartons are sold between 7 A.M. and 8 A.M., or from 5 P.M. onward the machine has a capacity of100 cartons. At 7 A.M., it is three-quarters full. From 8 A.M to 10 A.M. 10:15 A.M. to noon, and from 1 P.M. to 3 P.M. the students are in class. The machine is filled at11 A.M. and at 4 P.M. Sketch a graph of the number of cartons in the vending machine as a function of time. Explain what each section of the graph represents.

Answers

Answer:

i cant do the graph rn but the slope would be y=4x-2

Step-by-step explanation:

A container has peppermint gum and spearmint gum. There are 18 pieces of peppermint gum in the container and the ratio of peppermint gum to spearmint gum is 2 : 3. Find the number of pieces of spearmint gum in the container.

I WILL GIVE YOU BRAINLIEST PLEASE HELP

Answers

Answer:

27 is your answer

Step-by-step explanation:

if 2;3 is your ratio and u have 18 peppermint gum then divide 18 by 2 and u get 9 then u multiply 9 by 3 and u get 27

The total number of spearmint gums will be 27

What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is that a container has peppermint gum and spearmint gum. There are 18 pieces of peppermint gum in the container and the ratio of peppermint gum to spearmint gum is 2 : 3.

Let the number of spearmint gum be {x}. So, we can write -

2/3 = 18/x

{x} = (18 x 3)/2

{x} = 27

Therefore, the total number of spearmint gums will be 27.

To solve more questions on algebraic expressions, visit the link below -

brainly.com/question/1041084

#SPJ2

If 3(x-4)-x is equal to 26 what is the value of x

Answers

Answer:

19

Step-by-step explanation:

3(x-4)-x=26

3x-12-x=26

2x=38

x=19

Help!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

a

Step-by-step explanation:

hbhbkbbhhkbhbhkjk

Help ASAP please. I want to quit brainly right now because nobody answers my questions
Ron’s class donated d dollars to a local charity. Danny’s class donated 21% more than Ron’s class. Which expression shows the amount Danny’s class donated in terms of the amount donated by Ron’s class?

A. 1.21d

B. 0.79d

C. d + 0.79d

D. d + 0.21

Answers

Answer:

D+0.21

Step-by-step explanation:

Helppppppppp I can’t do math

Answers

Answer:

i believe its C

Step-by-step explanation:

What is the solution to the linear equation? 6k + 10.5 = 3k + 12

○ k = 0.5

○ k= 2

○ k = 7.3

○ k = 9​

Answers

k = 0.5

The answer cannot be
k = 2 or k = 7.3 or k = 9 because at the very end of the equation you must divide 3 on both sides. 1.5 / 3 is 0.5

Answer:

k=0.5

Step-by-step explanation:

Does the equation y = 7.2x represents a direct proportion?

Answers

Answer:

Yes the equation represents a direct proportion

Step-by-step explanation:

We are given the expression

[tex]y = 7.2x[/tex]------- expressing the relationship between y and x

one way to know if the expression shows a direct proportionality is to answer the question, does y increase if x increases?

let us plug two values for x and see what happens to y

for x=3

y=7.2(3)

y=21.6

for x=4

y=7.2(4)

y=28.8

for x= 2

y=7.2(2)

y=14.4

From our observations when  x increases the value of y increases and vice versa, hence there exist a direct proportionality

If 1+1=Flamingo, what does 2+2 equal? I really need this answered along with the explanation.

Answers

Bear!!!!!!!!!!!!!!!!!!!!!!

A student correctly writes the equations of two lines based on their graphs. Line 1 y = − 5 2 x Line 2 y = − 5 2 x + 8 Which statement about the graphs of the lines is true? Only Line 2 intersects the y -axis at the origin. Only Line 2 intersects the y -axis at the origin. Only Line 1 intersects the y -axis at the origin. Only Line 1 intersects the y -axis at the origin. Neither Line 1 nor Line 2 intersects the y -axis at the origin. Neither Line 1 nor Line 2 intersects the y -axis at the origin. Both Line 1 and Line 2 intersect the y -axis at the origin.

Answers

Only Line 1 intercepts the y-axis at the origin

Explanation

Y=Mx+b
M= slope B= y-intercept

When it’s only y=mx the interception occurs (0,0) aka the origin

6c + 11 = 2c + 59
answer - 12

Answers

Answer:

Yes the answer is 12.

Step-by-step explanation:

6c + 11 = 2c + 59

6c - 2c = 59 - 11

4c = 48

dividing both sides by 4:

c = 12.

the buses in the school parking lot can carry a total of 626 students some of the buses can carry up to 66 students in the remainder of the buses can carry up to 74 students this situation can be represented by the equation 66x + 74y = 626 in this equation what does x represent

Answers

66 students per bus i believe

29 points if u can help me with this!

Look for any properties used in these equations. Choose ALL equations that correctly apply properties of operations.

Answers

Answer:

B, C, and D

Step-by-step explanation:

B

C

D

Answer:

IT B, C, and D

Step-by-step explanation:

B, C, and D are the right answers. Mark me brainliest please.

can someone solve this for meh ?

Answers

y=5. since 1&4 equal 180 we know 4=78. so 180-78=102 and 102=20y+2 so y=5

Please help, giving brainliest too whoever answers first

Answers

Answer:

A

Step-by-step explanation:

For a science experiment, Mr. Barrows divides 3/4 cup of salt into small jars, each containing 1/10 cup. If he has 1/7 cup of salt left over, how many jars does he fill? Enter an expression you could use to solve the problem.

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Initial cup of salt = 3/4 cups ; divided into small jars

Fraction of salt in small jars = 1/10 cup

Fraction left over = 1/7 cup

Number of jars filled?

The fraction divided into the jars :

Initial amount - left over

3/4 - 1/7

(21 - 4) / 28

17 / 28

Fraction of salt per jar = 1/10

Number of jars filled :

Total fraction divided into jars / fraction of salt per jar :

(17 / 28) ÷ (1 /10)

(17 / 28) * (10 / 1)

170 / 28

= 6.0714

= 6 jars

If the wingspan of the airplane on the blueprint is 15 centimeters long, what is the wingspan of the actual airplane?

1 centimeter = 2.5 meters

A. 6 meters
B. 15 meters
C. 30.5 meters
D. 37.5 meters

Answers

The answer is D. 37.5 because 2.5*15 is 37.5

An economy package of cups has 400 green cups. If the green cups are 20% of the total package, how many cups are in the package?

Answers

Answer:

80 cups

Hope that helps! :)

it snowed 7/8 inches on Monday. on Tuesday it snowed 1/4 inches less than it did on Monday. how much did it snow on tuesday HELP PLS ASAP​

Answers

it snowed 5/8 inches on tuesday

Answer:

I put  7/8 - 1/4 in a calculator and got 5/8

Step-by-step explanation:

Find the value of x (3x+38)5x

Answers

Answer:

19

Step-by-step explanation:

3x = -38 + 5x

3x + -5x = -38 + 5x + 5x

3x + -5x = -2x

-2x = -38 + 5x + -5x

5x + 5x =0

-2x = -38 + 0

-2x = -38

-2x / -12 = 38 / -2

x=19

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