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
V125BC [204]
3 years ago
13

The variable z is directly proportional to x, and inversely proportional to y. When x is 11 and y is 14, z has the value 7.85714

28571429. What is the value of z when x= 15, and y= 22

Mathematics
1 answer:
marta [7]3 years ago
7 0

Z=kx/y

7.9=k11/14

Cross multiply

K11=7.9x14

K =7.9x14/11

K=10.1

........

Z= kx15/22

Z=10.1x15/12

Z=12.625

You might be interested in
What are the primary colors?
lawyer [7]
Red, yellow, and blue.
6 0
2 years ago
Read 2 more answers
Which two rays form BCE
oksano4ka [1.4K]
I think it's CE and CB
3 0
3 years ago
Read 2 more answers
Identify two composite numbers that each have 8 as a factor.
Dima020 [189]
<span>A composite number, we remember, is a whole number (no decimals or fractions) that can evenly divide (again, into no fractions or decimals) into two numbers other than itself and 1 (sort of the opposite of a prime number). So, 8 needs to be one of the two numbers. Pick another number--any whole number--and multiply it by 8. The result will be your composite number. Two examples: 8 times 6 equals 48. This works as 48 divided by 8 equals 6, both of which are whole numbers other than 48. Another is 72, the product of 8 times 9.</span>
5 0
3 years ago
1. y=900(1.27)^x
Sophie [7]

Answer:

The initial value is 900

It is experiencing exponential growth by 27%

Step-by-step explanation:

Exponential functions are in the form y=a(b)^x, where a is the initial value, b is the multiplier, and x is the input, such as how many years past a certain date.

Exponential growth is when the multiplier is above 1.00, or above 100%, because b is determined by 1 + r if you have exponential growth, or 1 - r if you have exponential decay. You will never use negatives with exponential decay.

7 0
2 years ago
Please help! 50 POINTS!!!
expeople1 [14]

Answer:

f(x) = 2/3 x +3

Step-by-step explanation:

We know the y intercept ( where it crosses the y axis)  is 3


We can calculate the slope from 2 points (-3,1) and (0,3)

Slope = (y2-y1)/(x2-x1)

         = (3-1)/(0--3)

          = (3-1)/(0+3)

          = (2/3)

The slope is 2/3


Since we know the slope and the y intercept, we can use the slope intercept form

y= mx+b

y = 2/3 x+3

f(x) = 2/3 x +3

5 0
2 years ago
Read 2 more answers
Other questions:
  • 1/3 cup serving contains how much grams
    6·1 answer
  • A circle has a diameter of 6 inches. Hoshi found the area by wrongly using the diameter instead of radius in the area formula. H
    7·1 answer
  • Solve the equation by completing the square. x^2 -2x = 15
    15·1 answer
  • A radius of the base cone is 3cm and altitude is 9cm calculate the volume.​
    7·1 answer
  • which of the following sets is closed under multiplication A. {0, 1, 2, 4} B. {0, 1} C. {1, 2} D. none of the sets are closed un
    7·2 answers
  • What is the sum of the measures of the interior angles of a hexagon? Enter your answer in the box.
    14·1 answer
  • R is equal to the sum of twenty-one and y *
    10·1 answer
  • On the first day of travel, a driver was going at a speed of 40 mph. The next day, he increased the speed to 60 mph. If he drove
    7·1 answer
  • 1. Explain whether each following example is proportional or non-proportional.
    8·1 answer
  • Please help<br> Consider: A (-3,-4), B (5,2), C (11,-6) <br><br> What is AB?<br> What is BC?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!