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
3241004551 [841]
3 years ago
8

Suppose Y varies directly as X, and Y=21 when X=3. Find X when Y=42

Mathematics
1 answer:
finlep [7]3 years ago
6 0

Answer:

can you make it more clear

Step-by-step explanation:

You might be interested in
Determine the x- and y-intercepts of the graph of y=1/4 x−2
JulsSmile [24]
First question : x=8 and y= -2
and once again, i dont know how t make a table
8 0
3 years ago
Read 2 more answers
Guys i need your HELP ASAP​
ivanzaharov [21]
To solve this, you’ll first need to solve for their slopes.

The slope for line Q is y2-y1/x2-x1 = -8-(-2)/-8-(-10) = -3

We know that the lines are perpendicular so the negative reciprocal of -3 is 1/3

The equation you get it y = 1/3x + b.

Now you will need to solve for b by substituting in the first ordered pair of line R.

2 = 1/3(1) + b.

Once you solve for b, you should get 5/3 and y = 1/3x + 5/3

Now, to find a, you will need to substitute in 10 from the second ordered pair into x in your new equation.

y = 1/3(10) + 5/3.

Your solution should be 5.

So your answer is: a = 5
8 0
3 years ago
At what point is the function y=(x+3)/(x^(2)-7x+12) continuous
nika2105 [10]

If a function is defined as

h(x)=\dfrac{f(x)}{g(x)}

where both f(x),g(x) are continuous functions, then h(x) is also continuous where defined, i.e. where g(x)\neq0

So, in your case, this function is continous everywhere, except where

x^2-7x+12=0

To solve this equation, we can use the formula x^2-sx+p=0

It means that, if the leading terms is 1, then the x coefficient is the opposite of the sum of the roots, and the constant term is the product of the roots.

So, we're looking for two terms whose sum is 7, and whose product is 12. These numbers are easily found to be 3 and 4.

So, this function is continuous for every real number different than 3 or 4.

3 0
3 years ago
what are the first 5 common multiples of 14 and 20? i’ll mark brainliest for whoever answers first!!!
shutvik [7]

Answer:

14, 28, 42, 56, and 70 are the first 5 common multiples of 14

20, 40, 60, 80, and 100 are the first 4 common multiples of 20

8 0
3 years ago
Read 2 more answers
Parallel lines in real world, help please
e-lub [12.9K]

Answer:

The answer is B(65)

Step-by-step explanation:

you just do 180 - JCB  = 65

so you do 180-65=115

hope this helps

6 0
3 years ago
Other questions:
  • The function f(x) = 1.50x + 12.50 relates how much Kelsey pays for digital service, f(x), to the number of movies, x, she stream
    9·1 answer
  • HELP ME!!!!!!!!!!!!
    8·1 answer
  • the area of a rectangular book cover is 4x^2-6x-40. The width of the book cover is 2x-8. what is the length?
    6·1 answer
  • Jessie Jessie bought a t-shirt for $6 it was originally $8 what discount did she receive
    5·1 answer
  • Dion had 25.00 he purchased the following items for his younger brother using his money. If the tax purchase was 1.85 how much m
    5·1 answer
  • If you got paid $300.00 for working 40 hours, how much did you get paid per hour?
    8·2 answers
  • The length of a rectangle is
    15·1 answer
  • A chemist is using 358 milliliters of a solution of acid and water. If 13.5% of the solution is acid, how many milliliters of ac
    10·1 answer
  • Solve for m.<br> m/-3 = 7
    5·1 answer
  • 1. On the subway, 8 out of 11 people are
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!