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
adoni [48]
4 years ago
13

z varies directly with x and inversely with y. When x = 6 and y = 2, z = 15. What is the value of z when x = 4 and y = 9?

Mathematics
1 answer:
cupoosta [38]4 years ago
5 0

Answer: z =2.22

Step-by-step explanation:first determine the constant. Z= K(X/Y) if z is 15, x is 6 and y is 2 then 15= K(6/2) then K is 5.

When x is 4 and y is 9 . k is 5 then

Z ,= 5(4/9) = 2.2.

You might be interested in
D=ABC for A solve for A
Dafna1 [17]
A = D/BC. In order to isolate A, all you do is divide by BC
7 0
3 years ago
6x2 + 15x – 21<br> no clue
Gala2k [10]

Answer:

-303

Step-by-step explanation:

.............

7 0
3 years ago
Explain how you can identify a non proportional relationship?
noname [10]
Simply simplify the ratios/fractions into their simplest fraction form and divide the numerator by the denominator. If they are equal, they are in fact proportions, if not, they aren't
5 0
4 years ago
√x&lt;4 A.20 B.12 C.2 D.-1 E.5. F. No solution
evablogger [386]
We know that for √x to be meaningful, we must have x ≥ 0.

If we square both sides of the inequality, we have
  x < 4²
  x < 16

Thus the whole solution is
  0 ≤ x < 16

The following choices are valid solutions to the inequality:
  B. 12
  C. 2
  E. 5
5 0
3 years ago
If the ratio of dogs to cats at an animal shelter is 2:5, then the number of cats is _____ times the number of dogs.
lys-0071 [83]
What number you have to multiply 2 to get 5. 
Or 2*x=5 solve for x
6 0
3 years ago
Read 2 more answers
Other questions:
  • Can u please work out the answers for me thank you x
    7·2 answers
  • The math 1 test has 20 questions worth a total of 100 points. The test consists of multiple choice questions worth 4 points each
    10·1 answer
  • Solve the following equation: 2(4^2 + 10) =
    15·2 answers
  • A scale model of a rectangle building lot measures 7 ft by 5ft. Id the actual house will be built using a scale factor of 12. Wh
    5·1 answer
  • (3x^2-15d) - (-10x^2-4d)
    6·2 answers
  • An artist is selling children's crafts. Necklaces cost $3.25 each, and bracelets cost $2.50 per each. The artist plan to have a
    15·1 answer
  • A pair of shoes originally costs $60. They are on sale for 25% off and sales tax is 7%. Cost is calculated by first applying the
    9·1 answer
  • At a large regional collegiate women’s swim meet, an official records the time it takes each swimmer to swim 100 meters for all
    10·1 answer
  • A square has an area of 9ft^2 what is the length,in feet of each of the square sides
    10·1 answer
  • Kristina deposits $850 into a savings account that has a yearly interest rate of 6.5%. determine the total amount of money that
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!