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
sweet [91]
2 years ago
10

If y varies directly as x and y = 5.5 when x = 11, find x when y = 3.5

Mathematics
2 answers:
monitta2 years ago
8 0

Answer:

x =7

Step-by-step explanation:

The direct variation equation is y = kx, where k is the constant of proportionality.

If y = 5.5 when x = 11, we can write 5.5 = 11k, which, when solved for k, yields k = 0.5.  

Then the direct variation equation in this case is y = 0.5x.

If y = 3.5, what is x?  y = 0.5x becomes 3.5 = 0.5x, yielding x = 7

PtichkaEL [24]2 years ago
4 0

Answer:

x=7

Step-by-step explanation:

y=mx

5.5=m×11

5.5÷11=m

m=1/2

y=mx

3.5=1/2×x

3.5÷1/2=x

x=7

You might be interested in
Explain to a new student how a reflection across the y-axis changes the coordinates of the original point.
RSB [31]
If you were to have (3,2) and find the reflection of the y axis, it would turn y into a negative, making it (3,-2).
6 0
3 years ago
Stans bank account balance is less than -$20.00 but more than -$21.00 what could stans account balance be
dsp73
Stan's account is -$20.50.
5 0
2 years ago
12. The width w of a rectangular swimming pool is 7x2. The area A of the pool is 7x3 – 42x2. What is an expression for the lengt
KiRa [710]
  A = lw
       7x³ - 42x² = l(7x²)
7x²(x) - 7x²(6) = l(7x²)
3 0
3 years ago
Solve for m. 2G/K=5/M
murzikaleks [220]

5k/2g is the answer to the problem


6 0
2 years ago
An initial amount of 180 grows at a rate of 22% every month. Write an exponential equation for the amount y after x months
il63 [147K]

Answer:

An initial amount of 180 grows at a rate of 22% every month.

=> The equation for the amount y after x months:

y = 180 x (1 + 22/100)^x

 

Hope this helps!

:)

6 0
3 years ago
Other questions:
  • An online music store is offering a promotion. When you spend $30 or more, you receive 3 songs for free. You Buy an album for $1
    12·1 answer
  • 173 out of 400 pages what is the percent he read
    8·1 answer
  • Analyze Relationships A scale for a scale drawing is 10 cm:1mm. Which is larger, the actual object or the scale drawing: Explain
    14·1 answer
  • Let v be an eigenvector of a matrix A with a corresponding eigenvalue ?=2. Find one solution x of the system Ax=v.
    15·1 answer
  • Tyler has ten coins. Each coin weighs two hundred thirty-one thousands of an ounce. Decide if each expression is equivalent to t
    5·2 answers
  • HELP IM BEING TIMED!!!!
    9·1 answer
  • 24. who won the tournament?<br> 25. who finished last
    8·1 answer
  • How many times does the 8 fit into the 83
    9·2 answers
  • Briarwood middle school chess club has 40 members 14 of the members are in seventh grade what percent of the members of the ches
    14·1 answer
  • Number 8 Please!!!!!<br> Thank You!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!