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
Mama L [17]
3 years ago
9

Suppose y varies directly as x, and y =15 when x = 3. Find the constant of variation (k).

Mathematics
1 answer:
vovangra [49]3 years ago
8 0

Answer:

k = 5

Step-by-step explanation:

y = kx

15 = k(3)

k = 15/3

k = 5

You might be interested in
LGS matematik
NeX [460]

Answer:

si quieres la respuesta pon más puntos

3 0
3 years ago
Determine the angle at the centre of a circle with radius 6.0 cm for an arc length of 8.0 cm.
sveta [45]

Answer:

Third option.

Step-by-step explanation:

You need to remember that the formula used to calculate the arc lenght is:

arc\ length=r C

Where "r" is the radius and "C" is the central angle in radians.

You need to solve for "C":

C=\frac{arc\ length}{r}

You know the radius and the arc lenght, therefore, you can substitute values to calculate the central angle in radians. Therefore, this is:

C=\frac{8.0cm}{6.0cm}

C=\frac{4}{3}radians

4 0
3 years ago
Help meeee!will give brainliest!
meriva
It is (0,-1) hope that helps
8 0
3 years ago
Read 2 more answers
The average hourly charge of plumbers in the Denver area is $84.00 with a standard deviation of $4.00. Assume that the hourly ch
Simora [160]

Answer:

The probability is 0.31

Step-by-step explanation:

In this question, we are tasked with calculating the probability that a random plumber called at Denver will charge an amount greater than $86 given the mean and the standard deviation.

Firstly, we calculate the standard score of $86 using the mean and the standard deviation.

Mathematically;

z-score = (x-mean)/SD

where x = 86, mean = 84 and SD = 4

z-score = (86-84)/4 = 2/4 = 0.5

Hence, we want to calculate P(z ≥ 0.5)

Using standard table

P( (z ≥ 0.5) = 1 - P(z ≤ 0.5) = 1 - ( 0.19146 + 0.5) = 0.30854

To the nearest hundredth = 0.31

5 0
3 years ago
Given a sphere with a diameter of 8 cm, find its volume to the nearest whole number
arsen [322]

Answer:

268 cm

Step-by-step explanation:

A P E X

4 0
3 years ago
Other questions:
  • 70,000 ones equal how many thousands?
    8·2 answers
  • Type the correct answer in the box. Use numerals instead of words.
    13·1 answer
  • A tank fills in 8 hours but evaporates in 12. how long will it take to fill the tank
    8·1 answer
  • I NEED TO GET THIS DONE HELP
    10·1 answer
  • Solve the absolute value equation,if possible. If there is no solution, explain. I 5x + 10 I = -7
    9·1 answer
  • Meredith wants to save up for a new bike that costs $400 and she gets $20 per week. How many weeks will it take her to get $400
    6·1 answer
  • Plllllssssssss Brainliest yo first answer pleassseeee
    8·2 answers
  • Let the vector v v have an initial point at ( 1 , − 7 ) (1,−7) and a terminal point at ( 3 , − 2 ) (3,−2). Determine the compone
    12·1 answer
  • The area of the triangle is
    11·1 answer
  • 4x over 9y divided by 2x^3y^2 over 3y
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!