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
Alex777 [14]
3 years ago
15

The value of y varies directly with x. If x = 5 when y = 12, what is the value of x whon y = 30?

Mathematics
1 answer:
Brrunno [24]3 years ago
5 0

Step-by-step explanation:

y = kx, where k is a real constant.

When y = 12, x = 5.

=> (12) = (5)k, k = 2.4.

Therefore when y = 30,

x = y/k = (30)/(2.4) = 12.5.

The answer is 12.5.

You might be interested in
Tadeo is a beekeeper. The table shows the weekly number of bees producing honey in a new hive. Which expression gives the number
Afina-wow [57]

The exponential equation that gives the number of bees in week 12 is of:

y = 4(3)^{11} = 708588

<h3>What is an exponential function?</h3>

It is modeled by:

y = ab^x

In which:

  • a is the initial value.
  • b is the rate of change.

In this problem, considering that the initial week is the first, and the value triples every week, the expression for the number of bees after x weeks is given by:

y = 4(3)^{x - 1}

Hence, after 12 weeks, the expression is:

y = 4(3)^{11} = 708588

More can be learned about exponential equations at brainly.com/question/25537936

7 0
2 years ago
Read 2 more answers
The radius of a circle is 7 miles. What is the circumference?
Fiesta28 [93]

The circumference is ~43.98 miles.

4 0
2 years ago
What is the slope of the line through the points (-2, -1) and (8, -3)
KiRa [710]

Answer:

The slope of the line through the points (-2,-1) and (8,-3) is -0.2.  Have a nice day and hope this helps.



5 0
2 years ago
Read 2 more answers
A store owner purchases thirty 75-watt light bulbs and 40 fluorescent light bulbs for a total cost of $95. A second purchase, at
N76 [4]

Answer:   75-watt are 30$  fluorescent are 30$ in the second and 65$ in the first

     

Step-by-step explanation: i calculated thirty 75-watt and the fluorescent and got these kinda hard to explain hope i helped:)

7 0
2 years ago
Help please I’ll give Brainly please answer both I’ll give 5 stars and lines
Llana [10]

Answer:

I  really cant see the picture that well or, i would help.

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • Suppose f(x) = x2 and g(x) = (4x)2. Which statement best compares the graph of g(x) with the graph of f(x)?
    8·2 answers
  • The Mathalot Company makes and sells textbooks. They have one linear function that represents the cost of producing textbooks an
    14·1 answer
  • Four balls of wool make 8 knitted caps how much many balls of wool will Malcom
    9·1 answer
  • AB is a straight line work out the size of angle X
    15·2 answers
  • Below is the table of values of a function.
    11·1 answer
  • When a volcano​ erupts, the height of the peak is reduced and the upper portion is removed. The height of a volcano after it eru
    12·1 answer
  • Find the area of the shape
    15·1 answer
  • Six less than the product of 8 and a number equals 2
    11·1 answer
  • Find the equation of the line that is perpendicular to y=-2/3 and passes through (4,8)
    8·1 answer
  • Divide.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!