If 3 varies inversely as x and y=2 when x=25, find x when y=40

Answers

Answer 1
since y varies inversely as x , the equation is y=k/x....... Then you plug in 2 for y and 25 for x to find K....... After that you get K= 50...... Then plug in 50 for K and 40 for y then solve for x....... After that you get X= 1.25

Related Questions

The rectangle below has an area of 49-x^249−x 2 49, minus, x, squared square meters and a width of 7+x7+x7, plus, x meters. What expression represents the length of the rectangle?

Answers

Answer:

7-x meters

Step-by-step explanation:

Answer: (7-x)

Step-by-step explanation: khan

15. Which statements are true about


square EFGH? Select all that apply.


20.


P


E


н


A FP=2(EG)


© MZEFH = 45


DFH I EG


B) EP= EH

Answers

Answer:

[tex]EG \perp FH[/tex]

[tex]m\angle EFH = 45^\circ[/tex]

Step-by-step explanation:

Given

See attachment for square EFGH

Required

Select the true statements

The sides of the square are EF, FG, GH and HE while the diagonals are: EG and FH

The diagonals of a square meet at [tex]90^\circ[/tex] . This implies that: EG and FH are perpendicular i.e. [tex]EG \perp FH[/tex]

Also, the diagonals divide the angles at the edges ([tex]90^\circ[/tex]) into two equal angles ([tex]45^\circ[/tex])

This means that:

[tex]m\angle EFH = 45^\circ[/tex]

The other two options are false.

i.e.

[tex]EP \ne EH[/tex]

[tex]FP \ne 2(EG)[/tex]

Answer:

Step-by-step explanation:

what do u do when the question says what is an area of the rectangle Like
Division?
Multiply?
Subtract
Or add

Answers

Answer:

multiply

Step-by-step explanation:

Area is measured in square units such as square inches, square feet or square meters. To find the area of a rectangle, multiply the length by the width.

Igor and sally both tan the same distance. Igor completed The distance in two hours. His average speed was 6 mph. Sally completed the distance in four hours. What with Sally is average speed for the journey? Give your answer in miles per hour

Answers

Answer: 3mph

Step-by-step explanation:

Speed is calculated as Distance/Time.

Igor's distance = Speed × Time

= 6 × 2

= 12m

Since they ran same distance, Sally also ran 12m

Sally's speed = Distance/Time

where,

Distance = 12m

Time = 4 hours

Average speed = 12/4 = 3mph

What is the domain of the function represented by the graph?
4
1
2-+
X
-2
TUL
NELL
A. X54
OB. all real numbers
C.
X20
OD
OsXs4

Answers

Answer:

Option C x>0

GOOD LUCK FOR THE FUTURE ! :)

All real numbers (In interval form (-∞,∞) )

What is domain?

The domain of a function is the set of values that we are allowed to plug into our function. This set is the x values in a function such as f(x). This set is the values that the function shoots out after we plug an x value in.

here, we have,

Given,

From the graph,

To find the domain of the function.

Now,

We know that a domain of a function is the set of the all the x-values for which the function is defined.

By looking at the graph of the function we see that it is a graph of a upward open parabola and the graph is extending to infinity on both the side of the x-axis this means that the function is defined all over the x-axis i.e. for all the real values.

Also, we know that the function will be a quadratic polynomial since the equation of a parabola is a quadratic equation and as we know polynomial is well defined for all the real value of x.

The domain of the function is:

Hence,  All real numbers (In interval form (-∞,∞) )

Learn more about Domain at:

brainly.com/question/28135761

#SPJ7

911÷406 con operaciones​

Answers

Answer:

2.24384236453

Step-by-step explanation:

division/división

Answer:

Step-by-step explanation:

2.24384236453 divicion y divicion

Jorge's soccer team is having its annu fundraiser. The team hopes to earn no less than three times as much as it did last year. This year the team earned $87. Write and solve an inequality to represent the team's earnings from last year. ​

Answers

Step-by-step explanation:

Last year, Jorge's team earned $87. This year it wants to earn three times that amount. Therefore:

Goal for this year = 3 x (Last year's earning) = 3 x $87 = $261.

Graph the relation. Is the relation a function? Why or why not?
{(-5, 6), (-2, 3), (3, 2), (6, 4)}

Yes; there is only one domain value for each range value.

Yes; there is only one range value for each domain value.

No; a domain value has two range values.

No; a range value has two domain values.

Answers

Answer:

Yes; there is only one range value for each domain value.

Step-by-step explanation:

For a relation to be a function, every input, x-value, needs to have a unique output, y-value. This means that one x-value cannot have multiple y-values. So, in a function x-values will never repeat. Since x-values do not repeat in this relation, it is a function.

i suck at fractions..............................

Answers

That would be 6 and 3/8

HELP FOR BAINLIST PLEAEEEE

Answers

Answer:

its 2.3

Step-by-step explanation:

PLEASE I NEED HELP!

which is the simplified rational expression for r^2-4r+5/r-4 - r^2+2r-8/r-4

C is incorrect!

Answers

fourth one i think (the way u typed the q is confusing)

Answer:Complete the statements.

When r = 2, the first expression is . 6

When r = 2, the second expression is 6.

When r = 5, the first expression is 21.

When r = 5, the second expression is .

The expressions are not equivalent. 12

Step-by-step explanation:

i got it right on e d g e n u i t y

Step-by-step explanation:

HURRY PLEASE!!!
Divya and Miguel were asked to find an explicit formula for the sequence 80\,,\,40\,,\,20\,,\,10,...80,40,20,10,...80, comma, 40, comma, 20, comma, 10, comma, point, point, point, where the first term should be h(1)h(1)h, left parenthesis, 1, right parenthesis. Divya said the formula is h(n)=80\cdot\left(\dfrac{1}{2}\right)^{{n-1}}h(n)=80⋅( 2 1 ​ ) n−1 h, left parenthesis, n, right parenthesis, equals, 80, dot, left parenthesis, start fraction, 1, divided by, 2, end fraction, right parenthesis, start superscript, n, minus, 1, end superscript, and Miguel said the formula is h(n)=160\cdot\left(\dfrac{1}{2}\right)^{{n}}h(n)=160⋅( 2 1 ​ ) n h, left parenthesis, n, right parenthesis, equals, 160, dot, left parenthesis, start fraction, 1, divided by, 2, end fraction, right parenthesis, start superscript, n, end superscript.

Answers

Answer: The answer is 80 * 1/2 ^ (n - 1) or 80 * 1/2(n-1)

Step-by-step explanation:

srry I don’t know which one I get confused

Answer:

The answer is 80 * 1/2 ^ (n - 1)

Step-by-step explanation:

Nine identical cakes weigh a total of 20¼ pounds. How much does each cake weigh? Simplify.

Answers

Answer:

[tex]2\frac{1}{4}[/tex]

Step-by-step explanation:

20 1/4 = 20.25

20.25/9 = 2.25

2.25 = [tex]2\frac{1}{4}[/tex]

Each cake weighs 2.25 pounds.

The weight of each cake will be equal to 2(¹/₄).

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

A mixed expression, also known as a complex fraction, is a fraction that contains a fraction in the numerator, the denominator, or both the numerator and the denominator.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Nine identical cakes weigh a total of 20¼ pounds.

20(¹/₄) = 20.25

20.25/9 = 2.25

2.25 = 2(¹/₄).

To know more about an expression follow

https://brainly.com/question/29282536

#SPJ2

2. Juan Pablo makes an hourly salary of $15 and time-and-a-half for any hours over 40. Last week he worked 45 hours. Explain how you would calculate his weekly gross pay, his Social Security Tax (6.2%), and his Medicare tax (145N). You don't need to actually calculate the values, just explain what mathematical processes you would use and why

Answers

Answer:

Gross = $712.5

Social security = $44.175

Medicare = $10.33125

Step-by-step explanation:

Given that :

Hourly pay = $15

Hours over 40 = 1.5 * $15 = $22.5

Total hours worked last week = 45

Total pay :

(40 * $15) + (45 - 5)*$22.5

$600 + $112.5

= $712.5

Hence, weekly gross pay = $712.5

Social security tax percent =(6.2%)

0.062 * gross = 0.062 * $712.5 = $44.175

Medicare tax percent = (1.45%)

0.0145 * $712.5 = $10.33125

A website received 2500 registered members in July. And the number of registered members in August decreased to 2245. What was the percentage decrease in the number of registered members?

Answers

Number of registrations a website received during July = 2500

Number of registrations a website received during August = 2245

Number by which the registrations decreased :

[tex] =\tt 2500 - 2245[/tex]

[tex] =\tt 255[/tex]

Thus, the registrations decreased by 255.

Let x be the perrcentage of decrease.

Which means :

[tex] =\tt 255 = \frac{x}{100} \: of \: 2500[/tex]

[tex] = \tt255 = \frac{x \times 2500}{100} [/tex]

[tex] =\tt 255 = \frac{2500x}{100} [/tex]

[tex] = \tt255 \times 100 = 2500x[/tex]

[tex] = \tt25500 = 2500x[/tex]

[tex] =\tt \frac{25000}{2500} = x[/tex]

[tex]\color{plum} =\tt \bold{10.2\%}[/tex]

▪︎Thus, the percentage of decrease in the number of registered members = 10.2%

What is 46x15?? Thank you so much!

Answers

Answer:

i think its a uhhh i think its a carrot..

Step-by-step explanation:

When adding two mixed numbers, you should add the ignore the fractions and add the mixed numbers first.
True
False

Answers

Answer:

FALSE

.....

I think?

Whoever gives me the correct answer to this will get a brainlest
I need the answer ASAP!

Answers

Volume of cone= 1/3πr^2h

8842.24 m^3= 1/3πr^2h

1/3*3.14*33*r^2= 8842.24m^3

r^2 = 8842.24*3/3.14*33

r^2= 26526.72/103.62

r^2 = 256

r= √256

r= 16m

Hope it helps. Please mark brainliest.

Can anyone help? Thanks

Answers

Answer:

jmmbnmmnbhm

Step-by-step explanation:

5y7ik6rto8i7tipupuj

A restaurant bill before tax is $15.50. How much is a 15% tip for this bill?

Answers

Answer:

for 1 person the tip is $2.33

Step-by-step explanation:

Which relation is a function?

{(5, 0), (–8, –5), (–8, 5), (–5, –8)}

{(5, 0), (0, 5), (–5, –5)}

{(5, 0), (0, –8), (5, –5)}

{5, 0, –8, –5}

Answers

The third one is a function
The person on top is correct the third one is a function have a nice day:)

If f(x) = x^2 + 3x – 2. find f(-2) .
f(-2) = -4
f(-2) = 4
f(-2) = -2
f(-2) = 2​

Answers

Answer:

f(-2) = - 4

Step-by-step explanation:

f(x) = x² + 3x - 2

f(-2) = ( -2)² + 3 *(-2) - 2

= 4 - 6 - 2

= 4- 8

= - 4

Hope it will help :)

PLEASE HELP!! view attachment!!

Answers

3 I think good luck

1. Sonnie is selling her artworks in the form of stickers and bags tags for
summer vacation.
The stickers (y) cost P50 each and the bag tag (x) cost P75. She needs to sell at least P1000
worth of items.
a. Write an inequality to represent the income from the artworks sold.
b. Sonnie knows that she needs to make at least 15 stickers. Write an equality to represent this
situation,
c. Identify a solution. How many stickers and bags should Sonnie sell?
PA HELP plssssssss ​

Answers

Answer:

50y + 75x ≥ 1000 ;

50(15) ≥ 750;

x ≥ 4

y ≥ 15

Step-by-step explanation:

Given that :

Number of stickers sold = y

Cost of sticker = 50

Cost of bag tag = 75

Number of bag tags sold = x

Total worth of items sold ≥ 1000

1)

50y + 75x ≥ 1000

2.)

To make atleast 15 stickers

y ≥ 15

Atleast 15 stickers :

50(15) ≥ 750

3.)

A possible solution :

50(15) + 75(x) ≥ 1000

750 + 75x ≥ 1000

75x ≥ 250

x ≥ 3.33

x ≥ 4

y ≥ 15

Can someone help me. The picture is attached. Thank you :) I will give brainliest

Answers

Answer: 5 Explanation:

Answer:

5

Step-by-step explanation:

[tex]\sqrt[3]{125}[/tex] = [tex]\sqrt[3]{5^3}[/tex] = 5

Write 7.812 correct to 2 decimal places

Answers

7.812 to 2 do = 7.81

Answer:

7.81.

Step-by-step explanation:

The 3rd decimal place is 2 (its  < 5) so we leave the 2nd place as it is.

Answer number 8 please I’m begging u

Answers

Answer:

Probability - spinner 1

1/5 - not likely

Probability - spinner 2

1/8 - not likely

Step-by-step explanation:

Expand to write an equivalent expression: -1/4(-8x+12y)

Answers

2x-3y IS IR FINAL ANSWER GL

When placed near a second charge, a 60-μC charge experiences a force of 0.30 N. What is the electric field strength at the location of the 60-μC charge? What is the strength of the electric field at the location of the test charge?

Answers

Answer:

[tex]E=5000N/C[/tex]

Step-by-step explanation:

From the question we are told that

Charge [tex]q= 60 \mu C[/tex]

Force [tex]F_=0.30N[/tex]

Generally the equation for electric field strength is mathematically given as

[tex]E=F/q[/tex]

[tex]E=\frac{0.30}{60*10^-^6}[/tex]

Therefore

[tex]E=5000N/C[/tex]

3x+2.2is equal to x=1.7

Answers

Answer:

7.3 answer

Step-by-step explanation:

x=1.7

now

3x+2.2

3×1.7+2.2

7.3

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