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
frutty [35]
3 years ago
5

LAST ONE! PLEASE HELP! WILL MARK BRAINLIEST!

Mathematics
1 answer:
garri49 [273]3 years ago
8 0

Answer:

Part A) the direct variation equation that relates x and y is:

y= -5x

Part B) value of y = 75

Step-by-step explanation:

Part A)

We are given that y varies directly with x, and y=10 when x=-2 what direct variation equation relates x and y?

If x and y are directly related then:

y ∝ x or y=kx

where k is constant of proportionality.

Now, finding k:

y=10 and x=-2

y=k\,\,x\\10=k*-2\\k=10/-2\\k=-5

So, value of k = -5

So, the direct variation equation that relates x and y is:

y= -5x

Part B)

What is the value of y when x = -15

the equation is:

y= -5x

Putting x = -15

y=-5x\\y=-5(-15)\\y=75

So, value of y = 75

Keywords: Direct Variation

Learn more about Direct Variation at:

  • brainly.com/question/10708697
  • brainly.com/question/2495851

#learnwithBrainly

You might be interested in
What does “4(x+3)+5x-x^2 “equal
Nikitich [7]

Answer:

Thanks for asking!

Step-by-step explanation:

The answer is -x²+9+12

5 0
2 years ago
Write an equation to show the height of the two buildings are equal to each other. Then solve for x. Show all your steps when so
Ierofanga [76]

Answer:

X = 108.

Step-by-step explanation:

Heights are equal, So equation will be,

4 + 3 \sqrt{x - 8}  = 34

So, solving the eq.

Subtract 4 from both sides ,

3 \sqrt{x - 8}  = 30

Divide 3 to both sides,

\sqrt{x - 8}  = 10

Squaring both sides,

x - 8 = 100

Add 8 to both sides,

x = 108

8 0
3 years ago
Help please..............
Aleonysh [2.5K]

Answer:

Basically ur wrong

Step-by-step explanation:

6 0
3 years ago
What is 0.85714286 rounded to the nearest hundredth
elena-14-01-66 [18.8K]

Answer:

0.86

Step-by-step explanation:

Rounding rules.

4 and below, round down.

5 and above, round up.

We are going to look at the thousandths place to round to the hundredths place.

0.857 -> 0.86

Best of Luck!

8 0
3 years ago
Read 2 more answers
What is the value of f^-1(-3)?​
poizon [28]

Flip the curve over <em>y</em><em> </em><em>=</em><em> </em><em>x</em><em> </em>then observe what is y when x = -3. You will find that f^{-1}(x)=1.5.

Hope this helps.

8 0
3 years ago
Other questions:
  • (07.05)<br> Graph the first six terms of a sequence where a = -10 and d = 3.
    5·1 answer
  • What expressions are equivalent to 4x-8x+12y
    5·2 answers
  • What is 5 2<br><img src="https://tex.z-dn.net/?f=%20%5Ctimes%20" id="TexFormula1" title=" \times " alt=" \times " align="absmidd
    13·1 answer
  • Which does the P stand for in the surface area of prisms formula?
    13·1 answer
  • If a quadratic function has an axis of symmetry of x = 2 and a zero of-1. Which of the
    8·1 answer
  • Austin borrowed money from a credit union for 4 years and was charged simple interest at an annual rate of 5% the total interest
    15·1 answer
  • Jason travel from the park
    15·1 answer
  • Emergency! Find the measure of angle A
    15·1 answer
  • A total of 684 tickets were sold for the school play. They were either adult tickets or student tickets. There were 66 fewer stu
    9·2 answers
  • Please help! Provide an answer with an explanation to my question &amp; you will receive a 100 points for one question! :)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!