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
musickatia [10]
2 years ago
5

Y varies inversely with x. When x=3 then y=5. Find the value of x when y =21

Mathematics
1 answer:
Ivahew [28]2 years ago
8 0

Answer:

0.7143ans

Step-by-step explanation:

y=1/x

y=k/x

k=yx

given x=3,y=5

k=5×3=15

when y=21

x=k/y

x=15/21=0.7143ans

You might be interested in
What else would need to be congruent to show that JKL= MNO by AAS?
taurus [48]
Answer: Choice B) Angle L = Angle O

---------------------------------------------------
---------------------------------------------------

If we know that Angle L is congruent to Angle O, then we can use the AAS (angle angle side) congruence property. We have one pair of angles marked by the square marker (angle J and angle M). So they are congruent angles. We have a pair of congruent sides JK = MN = 3. So we're just missing a pair of angles. 

Note: The answer is NOT angle K = angle N because this would mean ASA would be used instead of AAS. The order of the letters is important as it establishes how the sides and angles relate. With ASA, the side is between the angles. With AAS, the side is not between the angles. 

3 0
3 years ago
Read 2 more answers
Characteristics of parallelogram
nadya68 [22]
Opposite sides are parallel
Opposite angles are congruent
Opposite sides are congruent.
3 0
3 years ago
Write an equation of each line in standard form with integer coefficients.<br> 4. y = 2.4x + 1.8
Nadusha1986 [10]

Answer:

<h2>12x - 20y = -9</h2>

Step-by-step explanation:

The standard form of an equation of a line:

Ax+By=C

We have

4y=2.4x+1.8

Convert

4y=2.4x+1.8          <em>multiply both sides by 10</em>

40y=24x+18          <em>subtract 24x from both sides</em>

-24x+40y=18            <em>change the signs</em>

24x-40y=-18          <em>divide both sides by 2</em>

12x-20y=-9

3 0
3 years ago
(2x^2+x+3)/(x-2)with remainder
Leni [432]

Answer:

2x+5 r. 13

Step-by-step explanation:

So using long division, you can solve for the quotient and the remainder.

Please look at the attached for the solution.

Step 1: need to make sure that you right the terms in descending order. (If there are missing terms in between, you need to fill them out with a zero so you won't have a problem with spacing)

Step 2: Divide the highest term in the dividend, by the highest term in the divisor.

Step 3: Multiply your result with the divisor and and write it below the dividend, aligning it with its matched term.

Step 4: Subtract and bring down the next term.

Repeat the steps until you cannot divide any further. If you have left-overs that is your remained.

3 0
3 years ago
You have quarters and dimes that total $2.80. Your friend says it is possible that the number of quarters is 8 more than the num
AnnyKZ [126]

Answer:

Step-by-step explanation:

d = number of dimes

2.80 = 0.1d + 0.25 (d + 8 )

2.80 = 0.1d + 0.25d + 2            Combine like terms

2.80 = 0.35d + 2                       Subtract 2 from both sides

0.80 = 0.35d                             Divide both sides by 0.35

d ≈ 2.29

No, it's not possible to have more quarters than dimes when the total is $2.80 because it's not possible to have part of a dime.

5 0
2 years ago
Other questions:
  • Draw a shape with 3 straight sides and 3 vertices
    11·2 answers
  • The first four terms of an arithmetic sequence are 28, 20, 12, and 4. which term of the sequence is -36
    8·1 answer
  • Someone please help me solve this !!
    7·2 answers
  • Select the correct answer.
    6·1 answer
  • Britany's office is moving. She has to fit her office supplies in a crate that is 3 feet long, 2 feet wide, and 2 feet tall. Wha
    11·1 answer
  • A restaurant chain sells 15,000 pizzas each month, and 70% of the pizzas are topped with pepperoni. Of these, 2/3 also have pepp
    14·2 answers
  • Chord AB subtends two arcs with measures in the ratio of 1:5. Line l is tangent to a circle at point A. Find the measure of the
    7·1 answer
  • Love this called sketch a graph of the polynomial function f(x)=x^3-6x^2+3x+10. Use it to complete the following:
    8·1 answer
  • Given the directed line segment AB: Point A is the _____ with coordinates Point B is the point with coordinates ______.​
    15·1 answer
  • Write down the next decimal number. 0,79; 0,76; 0,73; 0,7; ___​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!