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3 years ago

The variables x and y vary inversely, and x = 12 when y = 6. Use the inverse variation formula, k = xy, to find y when x = 3.

Mathematics

1 answer:

Allushta [10]3 years ago

7 0

Answer:

Step-by-step explanation:

xy = k

Filling in given values, we have ...

12·6 = k = 3·y

y = 12·6/3 = 24

y is 24 when x is 3.

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Elements can have a positive charge, a negative charge, or no charge. Determine the magnitude of each element given below. Eleme

Ipatiy [6.2K]

Answer: $||q_{A}||=5$ , $||q_{B}||= 3$ , $||q_{C}|| = 0$ .

Step-by-step explanation:

The magnitude is an absolute value by definition. Hence, each element has the respective value:

$||q_{A}|| = 5\\||q_{B}|| = 3\\||q_{C}|| = 0\\$

5 0

3 years ago

James has a job with a current salary of $42,000. He wants to earn a college degree that will take him 2 years to complete and i

FinnZ [79.3K]

To recover the investment James will take $\boxed{2.5{\text{ years}}}.$

Further Explanation:

Given:

The current salary of James is $\$ 42000.$

The time taken to complete the college degree is $2{\text{ years}}.$

The cost of the college degree is $\$ 28000.$

The James’ new salary after college degree will be $\$ 56000.$

Calculation:

The total investment of James can be calculated as follows,

$\begin{aligned}{\text{Investment}} &= {\text{Salary of 2 years}} + {\text{2 years tuition fees}} \\&= 2 \times 42000 + 2 \times 28000\\&= 84000 + 56000\\&= \$ 140000\\\end{aligned}$

The total investment for 2 years will be $\$ 140000.$

The James’ new salary after college degree will be $\$ 56000.$

The time taken by James to recover $\$ 140000.$

$\begin{aligned}{\text{Time}} &= \frac{{140000}}{{56000}}\\&= 2.5{\text{ years}}\\\end{aligned}$

To recover the investment James will take $\boxed{2.5{\text{ years}}}.$

Learn more:

Learn more about inverse of the function brainly.com/question/1632445
Learn more about range and domain of the function brainly.com/question/3412497
Learn more about profit and loss brainly.com/question/2479097

Answer details:

Grade: High School

Subject: Mathematics

Chapter: Investment and return

Keywords: James, job, current salary, salary, $42000, earn, college, college degree, 2 years, complete, graduation, cost, $28000, per year, investment, recover, new salary, work, able, school, full time.

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Answer:

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There must be a different title each time.
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romanna [79]

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ollegr [7]

Answer:

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