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
patriot [66]
2 years ago
13

Y is directly proportional to x. when y=30, x=6. A) work out an equation connecting y and x. B) work out what the value of y whe

n x=12.
Mathematics
1 answer:
Arturiano [62]2 years ago
4 0

Answer:A)Y =k x

               Y =5x

              B.Y=60

Step-by-step explanation:

Given that Y is directly proportional to x

mathematically , it Is represented as

Y ∝ x

Introducing the constant of proportionality, k. we have that

Y =k x

Now when y=30, x=6, k becomes

30=k 6

k=30/6=5

we now have the equation connecting them as

Y =5x

B) Now when x=12, y becomes

Y =5x

Y =5 X 12

Y=60

You might be interested in
2. Select the factor table with the appropriate
Alexandra [31]

Answer:

60

Step-by-step explanation:

5+5+5+5+5+5+5+5+5+5+5+5

4 0
3 years ago
One week a computer store sold a total of 36 computers and external hard drives. the revenue from these sales was ​$30875 . if c
melamori03 [73]

To solve this problem you must apply the proccedure shown below:

1. You must make a system of equation by using the information given in the problem above. Then, let's call:

x: The number of computers sold.

y: The number of hard drives sold.

2. Therefore, you have the following system of equations:

\left \{ {{x+y=36} \atop {1180x+125y=30875}} \right.

2. Solve for x in the first equation and substitute it into the second equation:

x=36-y\\ 1180(36-y)+125y=30875

3. Solve for y:

42480-1180y+125y=30875\\ y=11

4. Substitute the value of y into the first equation to calculate x:

x+11=36\\ x=25

Therefore, the answer is: The store sold 25 computers and 11 hard drives.

5 0
3 years ago
What is the product of 34.2 and 1.2
sertanlavr [38]
41.04 is your answer because product means you bed to multiply so you multiply 34.2×1.2 and you get 41.04
6 0
3 years ago
Read 2 more answers
What is the equation of the midline for the function f(x)?
Alex_Xolod [135]

9514 1404 393

Answer:

  f(x) = 3

Step-by-step explanation:

Replace sin(x) with 0 and you will have it.

  f(x) = 12·0 +3

  f(x) = 3

4 0
2 years ago
Solve for x:<br><br> -42 = -7x
DENIUS [597]

Answer:

x=6

Step-by-step explanation:

-7x= -42

x= -42/-7

x=6

5 0
3 years ago
Read 2 more answers
Other questions:
  • The area of a rectangle is 32 in² and its length is 4 inches
    15·2 answers
  • Historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the pre
    12·1 answer
  • Which of the following expressions is closest in value to 1?
    5·2 answers
  • A necklace has and matching bracelet have two types of beads. The necklace has 12 large beads and 8 small beads and weighs 88 gr
    11·1 answer
  • What value of x is in the solution set of the following inequality? -3x+5&gt;17
    10·1 answer
  • a new car that costs $17,500 loses 25 percent ot its value in the first year.how much is the loss of the value?
    13·1 answer
  • Which statement best describes g(x) = 3x + 6 - 8 and the parent function f(x) = } ?
    12·1 answer
  • Tyra has 12 2/3 cups of sugar. If r is the amount of sugar called for in one batch of cookies, the expression 12 2/3 ÷ r can be
    10·2 answers
  • PLEASE HELP ITS EASY MATH AND FIRST ONE WHOS CORRECT WILL GET BRAINLIST
    7·2 answers
  • Fifteen minus three to the power of two
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!