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
WITCHER [35]
3 years ago
6

If y varies directly as x and inversely as z and y = 4 when x = 2 and z = 7, find y when x =

Mathematics
1 answer:
S_A_V [24]3 years ago
4 0

Answer:

y = 28

Step-by-step explanation:

Given that y varies directly as x and inversely as z then the equation relating them is

y = \frac{kx}{z} ← k is the constant of variation

To find k use the condition y = 4 when x = 2 and z = 7, then

4 = \frac{2k}{7} ( multiply both sides by 7 )

28 = 2k ( divide both sides by 2 )

14 = k

y = \frac{14x}{z} ← equation of variation

When x = 6 and z = 3 , then

y = \frac{14(6)}{3} = 14 × 2 = 28

You might be interested in
0.00000007 as a fraction
wariber [46]

Answer:

7/100000000

Step-by-step explanation:

to find this out we can start by saying that 0.7 is 7/10

every 0 in front of 7 after that is adding another 0 to 10

so

0.07 is 7/100

0.00000007 is 7/100000000

5 0
2 years ago
Please help me it dues in 51 minutes​
AfilCa [17]

Answer:

y=3x-4

Step-by-step explanation:

Slope intercept form is :

y=mx+b

where m is the slope, and b is the y intercept.

We are given the slope, it is 3. we are also given the y intercept, it is (0,-4). For this form, the 0 in (0,-4) is ignored, and we consider the y intercept to be -4.

So, m is 3, and b is -4. Substitute the values into the equation

y=3x+ -4

y=3x-4

So, the equation in slope intercept form is

y=3x-4

8 0
3 years ago
Read 2 more answers
Identify each expression with a sum of x2 + 3x +1.
Yuki888 [10]

Answer:

There are no like terms.

Step-by-step explanation:

5 0
3 years ago
Which expressions are equivalent to 4 to the 5 power choose all that apply
Nuetrik [128]

Answer:

since you didn't put the answer choices, this is what I know...

4 to the 5 power is 1024

it can be written as:

4x4x4x4x4 or 4^5

Step-by-step explanation:

7 0
2 years ago
Solve for x. 9x - 18 = 7x + 30
viva [34]

Answer: x = 24

Step-by-step explanation:

9x - 18 = 7x + 30

9x - 7x = 30 + 18

2x = 48

x = 48/2 = 24

3 0
3 years ago
Other questions:
  • If 22x = 2, what is the value of x?<br> A-2/3<br> B-3/2<br> C- 2<br> D- 3
    5·2 answers
  • What's the median and IQR of this graph?
    14·1 answer
  • Find the area of the triangle that divides the parallelogram in half.​
    13·1 answer
  • Jeff has one million dollars in his bank account. He cashes out only in $100 bills. How many $100 currency notes should he colle
    14·2 answers
  • What is the difference in high between 30 mm of a cliff and 87 mm up a cliff ​
    10·1 answer
  • Enter an equation for the word sentence. Use the variable c for the cost.
    12·2 answers
  • The jury pool for the upcoming murder trial of a celebrity actor contains the names of 100,000 individuals in the population who
    5·1 answer
  • Help me please , thank you so much
    9·1 answer
  • Elimination Method: 6x - 4y = -24 and 4x + 5y = -2
    14·1 answer
  • THE SALES TAX ON A TABLE SAW IS $14.85 WHAT IS THE PURCHASE PRICE OF THE TABLE SAW BEFORE TAX IF SALES TAX IS 5.5%
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!