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
Mashutka [201]
2 years ago
6

X varies directly with y. if x=75 when y=88, find x when y=23

Mathematics
1 answer:
Galina-37 [17]2 years ago
8 0

Answer:

19.6

Step-by-step explanation:

88 ____ 75

23 ____ x

x = 23 . 75 / 88 = 19.6

You might be interested in
4/12 + 3/12 = ???????
iris [78.8K]
7/12

..............................
4 0
3 years ago
Read 2 more answers
A drill is used to dig down into the earth. After 2 hours, the drill is 12 meters below the surface. After 5 hours, the drill is
Zanzabum
No idea to that answer sorry
4 0
3 years ago
If a fish swims 7/8 of the depth of 32 foot deep lake, how many feet down did the fish swim?
erastova [34]
The answer is 8÷32 4 4×7 28
4 0
3 years ago
Find all solutions to the equation in the interval [0, 2pi). COS X = sin 2x​
Lera25 [3.4K]

Answer:

Step-by-step explanation:

cos x=sin 2x

sin 2x-cos x=0

2 sin x cos x-cos x=0

cos x(2 sin x-1)=0

either cos x=0

x=\frac{\pi }{2},\frac{3\pi }{2}

or

2 sin x-1=0

sin x=\frac{1}{2} =sin (\frac{\pi }{6}),sin(\pi -\frac{\pi }{6} )\\x=\frac{\pi }{6} ,\frac{5 \pi }{6}

6 0
3 years ago
Among all pairs of numbers whose difference is 20, find a pair whose product is as small as possible. what is the minimum produc
Elza [17]

Answer:

-100

-10, 10

Step-by-step explanation:

Let the smaller number be x.

Then the larger number is x + 20.

The product is x(x + 20).

Now you can write the function

y = x(x + 20)

y = x^2 + 20x

Take the first derivative of y with respect to x.

y' = 2x + 20

Set the first derivative equal to zero to find the x value for the minimum value of the function.

2x + 20 = 0

2x = -20

x = -10

The minimum value of the function occurs at x = -10. -10 is one of the two numbers.

y = x^2 + 20x

For x = -10,

y = (-10)^2 + 20(-10)

y = 100 - 200

y = -100

The minimum value of the product is -100.

x = -10

x + 20 = -10 + 20 = 10

The numbers are -10 and 10.

If you have not learned derivatives yet, then plot the function

y = x^2 + 20x

Now look at the graph and find the minimum y value and the x value at which it occurs.

The minimum y value is -100. That is the minimum product you are looking for.

The x value of the minimum function value is x = -10.

Then x + 20 = -10 + 20 = 10.

The numbers are -10 and 10.

4 0
3 years ago
Other questions:
  • The lengths of the sides of a rectangle are 12.4 and 26. What are the measures of the angles between its diagonals? Round your a
    12·1 answer
  • You flip a fair coin 7 times. What is the probability that the coin lands with the heads side up exactly 3 out of the 7 times?
    11·1 answer
  • The selling price of a scientific calculator is $15. If the markup is 25% of the dealer’s cost, what is the dealer’s cost of the
    12·2 answers
  • Find the area of the rhombus leave the answer in simplest radical form
    7·1 answer
  • You lose 5 points for every wrong answer in a trivia game. What integer represents the change in your points after answering 8 q
    10·1 answer
  • A space traveler saw 17 stars. All but 8 disappeared into a black hole. How many were left?
    8·1 answer
  • Solve this k/3+4-2k=-9k
    8·1 answer
  • find the value of x of given figure and solve this question step by step plzz help question number D​
    5·1 answer
  • Pencils cost 9p each.<br><br>How much do 28 pencils cost?
    13·2 answers
  • Which terms could have a greatest common factor of 5m2n2? Select two options.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!