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]
3 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:
monitta3 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]3 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
Can somebody help me please?
kati45 [8]
 This is easy all you do to find the surface area is to multiply base the number that is across by the height the number that shows the height.The you just multiply those 2 and you got the surface area.For number one the answer is,20.For two the answer is, 6.Need more help ask me under in the comments. If this was helpful please give me brainiest answer. Hope this Helps :D
7 0
3 years ago
Help please <br> Graph ​y&lt;1−3x​.
mash [69]
It should be #4, dashed line and left side shaded
8 0
3 years ago
Which pair of numbers are not opposites?
mrs_skeptik [129]

Answer:

The answer is C, 17 and | -17|

Step-by-step explanation:

We can solve this using the process of elimination.

Looking at the first one, we know that those | | around the 7 mean to find the absolute value. The absolute value is the number of units the number is from zero, and it is always positive. This means that it is saying 7 and -7. Those are opposites, so we know that this isn't right.

17 and -17 are opposites, since the opposite of a positive is a negative.

The last one is the same. 71 and -71 are opposites. That leaves us with C.

Remember that those | | mean to find the absolute value of. -17 is 17 unites from zero. So is 17 the oppostie of 17? No, so these are not opposites, and therefore are our answer.

8 0
3 years ago
Read 2 more answers
Courtney walks 4 laps around 1/4 mile back. 1 mile is 5280 feet, how far did she walk
Alika [10]

Answer:

5280 feet

Step-by-step explanation:

one loop is 1 fourth of a mile

she walked 4 times, making it a full mile.

So, she walked 5,280 feet in total

8 0
3 years ago
Find area of a square garden having a length 45m ​
Oliga [24]

Answer:

A = 2025 ft^2

Step-by-step explanation:

The area of a square is given by

A = s^2 where s is the side length

A = 45^2

A = 2025 ft^2

7 0
3 years ago
Read 2 more answers
Other questions:
  • Need help with graph please asap, 12 points!
    14·2 answers
  • What has 2 dimensional shape and the perimeter is also known as a circumference
    15·1 answer
  • If point C is between points A and B, then AC + __ = AB.
    5·2 answers
  • Add...- 3+(-3) =<br> Thank youuuu!!!!
    13·1 answer
  • I need help on this question plz
    6·1 answer
  • 6 less than n is greater than 8​
    10·1 answer
  • 6) How are a parallelogram and a trapezoid different?
    5·2 answers
  • Hows your day doing this is not a thing for math but just wandering
    6·2 answers
  • A scale model of a bicycle has a scale of 1 : 25. The real bicycle has a length of 1.75 m. What is the length of the model in cm
    13·1 answer
  • CAN SOMEONE HELP ME PLEASE ASAP!?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!