All categories

3 years ago

If y varies inversely with x and y=22 when x=10, find the constant of variation

Mathematics

1 answer:

swat323 years ago

8 0

Answer:

k = 220

Step-by-step explanation:

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

y = $\frac{k}{x}$ ← k is the constant of variation

To find k use the condition y = 22 when x = 10

k = yx = 22 × 10 = 220

You might be interested in

Which of the following options have the same value as 8\%8%8, percent of 949494?

mr Goodwill [35]

Answer:

A&D

Step-by-step explanation:

8% of something is the same thing as 8% times that. If we use that, we get the answers A and D

5 0

2 years ago

HELP! PLS ANSWER!!! 45 points!

sweet-ann [11.9K]

Answer:

the answer is 24

Step-by-step explanation:

36 times 2x is 24

8 0

4 years ago

Read 2 more answers

Can someone answer number 11?

Anna71 [15]

Answer:

Step-by-step explanation:

To be rational means to be able to express the result as the ratio of two whole numbers.

a) 4/7 + (-1/3) = 12/21 - 7/21 = 5/21 so rational

b) √(4) • 2/5 = ±2 • 2/5 = ±4/5 so both solutions are rational

5 0

3 years ago

Read 2 more answers

PLEASE HELP WITH GEOMETRY IM STUCK!?}

Ilya [14]

Answer:

13.8

Step-by-step explanation:

Recall the trigonometric ratios

Sine = Opposite over Hypotenuse (SOH)

Cosine = Adjacent over Hypotenuse (CAH)

Tangent = Opposite over Adjacent (TOA)

Now lets look back at the question

We are given an angle and its adjacent side length (11) and we need to find the hypotenuse

The hypotenuse and adjacent sides corresponds with the trig function cosine so we will use cosine to solve for x

( remember that cosine = adjacent over hypotenuse )

$cos(37)=\frac{11}{x}$

step 1 multiply each side by x

$cos(37)*x=xcos(37)\\\frac{11}{x} *x=11$

now we have $xcos(37)=11$

step 2 divide each side by cos(37)

$\frac{xcos(37)}{cos(37)} =x\\\frac{11}{cos(37)} =13.77349\\$

we're left with x = 13.77439

Our last step would be to round to the nearest tenth

We would get that the answer is 13.8

3 0

3 years ago

Read 2 more answers

Select the correct answer.

Drupady [299]

Answer: A

Step-by-step explanation:

because i did a quiz with the same and i got it right

8 0

3 years ago