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
Please help me ASAP on this
nika2105 [10]

Answer:

z=20

Step-by-step explanation:

(2z + 16) +124 =180

2z + 16 +124

2z +  140 = 180

2z     -140 -140

2z        =  40

z           =  20

6 0
3 years ago
i need help asap!! Which of the following statements is false? Most absolute value equations will yield two different solutions.
Bezzdna [24]

the false statement is: the absolute value of a number can be negative.

the absolute value of a number is never negative

6 0
3 years ago
Is BC a line segment, a ray, or a line
Anettt [7]

Answer:

Line Segment

Step-by-step explanation:

A line segment has dots on both ends of the line. A line has nothing at either end of it. A ray has an arrow at one end of the line. Line BC is a line segment.

Hope it helps!

7 0
2 years ago
Read 2 more answers
The length of a rectangle is (5x − 1) cm and the width is (11 − 2x) cm. If the perimeter of the rectangle is 44 centimeters, wha
daser333 [38]

Answer:

57 cm²

Step-by-step explanation

<em>l = length</em>

<em>w = width</em>

<em>p = perimeter</em>

<em />

<em>(5x - 1) = length</em>

<em>(11 - 2x) = width</em>

<em>44 = perimeter</em>

<em />

<em>Formula for the perimeter of a rectangle:</em>

<em>l + l + w + w</em>

<em>2l + 2w = p</em>

<em />

<em>Substitute the variables for the length and width with the values given to you by the problem, then solve.</em>

<em></em>

<em>2(5x - 1) + 2(11 - 2x) = 44</em>

<em>(10x - 2) + (22 - 4x) = 44 (Distributive property)</em>

6x + 20 = 44

6x = 24

x = 4

<em>Plug x = 4 back into the length and width.</em>

Length = (5x - 1), (5(4) - 1), (19)

Width =  (11 - 2x), (11 - 2(4)), (3)

<em>Area for a rectangle: Length × Width = Area.</em>

<em>19 × 3 = 57 cm²</em>

<em>This is all in cm so answer with cm²</em>

5 0
3 years ago
The weather report stated that tomorrow's low temperature will be -3 degrees. What does that statement mean?
Ket [755]

Answer:

It means that the lowest the temperature will get that day is -3 degrees

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • In the equation 12a+5, identify the coefficient.
    13·2 answers
  • A gardener is planting two types of trees:
    13·1 answer
  • Solve this equation for x: 2.2 + 12x – 7=0
    15·1 answer
  • 8 divided by 6304 show work
    11·1 answer
  • 16ax + 4x^2 +16a^2 HELP!!!!!!
    14·2 answers
  • Pls help me with this question no. 14 asap. will mark brainliest ​
    6·1 answer
  • I need help ASAP! I don’t understand this so I was hoping anyone would help
    11·1 answer
  • Which of the following square root of the following number below? Check all that apply. 361
    10·2 answers
  • ASAP please
    15·1 answer
  • Fully factorize<br><br> 6xy-2x+3z-9zy
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!