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
IRISSAK [1]
2 years ago
12

So if y varies directly as x, and y=21 when x=3. What is x when y=42?

Mathematics
1 answer:
weqwewe [10]2 years ago
6 0

Answer:

x = 6

Step-by-step explanation:

Equation:

\frac{3}{21} = \frac{x}{42}\\\\Cross - multiply\\\\3 *42 = 21x\\\\126 = 21x\\\\x = 6

-Chetan K

You might be interested in
PLS HELP BRAIN LIST IF YOU GET IT RIGHT
muminat

Answer:

1 , 2 , 3, 4

Step-by-step explanation:

An expression  is a finite combination of symbols that is well-formed according to rules that depend on the context. meaning it has no = sigh

6 0
3 years ago
Please help (get brainliest)
skelet666 [1.2K]

Answer:

I belive its B.

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP. Simplify the expression <br>-4x - 2 + 3x - 4​
shutvik [7]

Answer:

-x-6

Step-by-step explanation:

-4x - 2 + 3x - 4​

Combine -4x and 3x  -x - 2 - 4​

Combine -2 and -4 -x - 6

4 0
3 years ago
Read 2 more answers
a scientist has two solutions which she has labeled solutions A and solution B each contains salt. she knows that solution A is
loris [4]

Answer

Let x = the number of ounces of Solution A

Let y = the number of ounces of Solution B

x + y = 180        y = 180 - x

.60x + .85y = .75(180)

.60x + .85y = 135      Multiply both sides of the equation by 100 to remove the decimal points.

60x + 85y = 13500

60x + 85(180 - x) = 13500

60x + 15300 - 85x = 13500

-25x = -1800

x = 72ounces

y = 180 - 72

y = 108 ounces          

6 0
3 years ago
The point A(4,3) is reflected over the point (3,5) and its image is point B. What
mamaluj [8]
B(5,1) I’m smart and don’t worry the answer is correct
5 0
3 years ago
Other questions:
  • How do i solve this​
    7·1 answer
  • What is the name for Peruvian Chinese food?
    11·2 answers
  • How many apples is 5 plus 5
    7·2 answers
  • Pls Solve This! I'll give Brainilest and points! :D
    6·1 answer
  • The graph represents a function related to a train's movement over time.
    10·1 answer
  • Use the law of cosines to find the indicated missing side
    10·1 answer
  • What is the value of X?
    15·1 answer
  • Plz help asap thank you​
    8·1 answer
  • Drew wants to determine how much ice it will take to fill his rectangular cooler. His cooler has a length of 22 inches, a width
    11·1 answer
  • Does increasing the 5 to 10 change the​ mode? How​ so? Select the correct choice below​ and, if​ necessary, fill in the answer b
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!