Mathematics High School

y is inversely proportional to 7I+x.
When x = 8, y = 2.
Find y when x= 15.​

Answers

Answer 1

I am taking 7I+x to  mean 71+ x.

Answer:  y=1.837

Step-by-step explanation:

Step 1

Let y is inversely proportional to 7I+x be  mathematically be written as

y ∝ 1/7I+x

Introducing our proportionality of constant , K we have that

y ∝ 1/7I+x

y =K 1/7I+x

y= K/ 7I+xh

Step 2

so when x= 8, and y =2,  k becomes

y= K/ 7I+x

k=  y x (7I+x)

=2 x (71 + 8)

2x 79

=158

 when x= 15, y =?

y= K/ 7I+x

y= 158/  71 + 15

y=158/86

y=1.837

Related Questions

Solve for this equation
[tex] \sqrt{x + 2 = 5} [/tex]
​

Answers

Answer:

x = 3 answer in the squire root is 5 what times itself = 5? youre answer will be 2.2360679775

Step-by-step explanation:

the ratio of lions supporters to sharks supporters in a sports bar is 2:5. If there are 35 people in the bar how many are sharks supporters ?​

Answers

Answer:

10

Step-by-step explanation:

2+5 = 7

35/7 = 5

2 × 5 = 10

hope this helps...

please help and i’ll give brainliest

Answers

Answer:

d)  XY = 15.75

Step-by-step explanation:

XY is the median of the trapezoid

XY = (DC + AB) ÷ 2

XY = (13.4 + 18.1) / 2

A line with a slope of o passes through the points (9, z) and (-7, 5). What is the value of z?

Answers

Answer:

z = 5

Step-by-step explanation:

m = ∆y/∆x = y₂-y₁/x₂-x₁

0 = y₂-y₁/x₂-x₁ = 5 - z / -7 - 9 = 5 - z / -16 →

5 - z / -16 = 0 → 5 - z / -16 × -16 = 0 × -16 → 5 - z = 0 →

5 - z - 5 = 0 - 5 → -z = -5 → z = 5

Please please help I’ll give 5 stars

Find the equation of the linear function represented by the table below in slope-
intercept form.

Answers

Answer:

f(x) = -5x -1

Step-by-step explanation:

For each change in x there is a -5 change in y so the slope is y = -5x

If x was 0 y would be -1 so the y-intercept is -1

Please Mark as Brainliest!

Find the percent of the octagon that is shaded in

Answers

Answer:  62.5%

Explanation:

We have 5 slices shaded out of 8 total. Therefore, we have 5/8 = 0.625 = 62.5% of this figure is shaded.

Answer:

62.5%

Step-by-step explanation:

7+100+1+3+7+10+15+12+17+38/10

Answers

Answer:

175.8

Step-by-step explanation:

The answer is 12 all of those added up is 120 and that divided by 10 is 12.

what are the two things do you need to write an equation?

Answers

Answer:

Slope and y intercept.

Step-by-step explanation:

This is necassary to write the equation of a line in y=mx+b

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

Alternatively, you could also write the equation for a line with a point on the line and the slope.

You would then write it in point slope formula:

y-y1=m(x-x1)

This can later be converted into slope intercept form.

Answer:

When asked to write an equation, you need to know two things – slope (m) and y-intercept (b).

Or

The Standard Form for a linear equation in two variables, x, and y, is usually given as Ax + By = C where, if at all possible, A, B, and C are integers, and A is non-negative, and, A, B, and C have no common factors other than 1.

write down 3 integers, all less than 25 whose range is 8 and mean is 13

Answers

Answer:

9, 13, 17

Step-by-step explanation:

The difference between the greatest value and the least is 8, the range.

Add the three numbers to total 39, then divide by 3 to get the mean, 13.

Tristan and his children went into a restaurant and will buy hotdogs and tacos. Each hotdog costs $4 and each taco costs $3. Tristan has a total of $30 to spend on hotdogs and tacos. Write an inequality that would represent the possible values for the number of hotdogs purchased, hh, and the number of tacos purchased, t.t.

Answers

Answer:

hh(4)+tt(3)=30

Step-by-step explanation:

Suppose you are replacing the carpet in the living room where the length of the living room is five feet shorter than twice its width, w. Tack strip is placed around the perimeter of the room, which is equal to five times the width. If carpet costs $2.99 a square foot, what the total cost to carpet the living room?

Answers

Answer:

$149.50

Step-by-step explanation:

Width = x

Length = 2x - 5

Perimeter of the room = 5x

Perimeter of the room = 2(length + width)

5x = 2{(2x-5) + x}

5x = 2(2x - 5 + x)

5x = 4x - 10 + 2x

5x = 6x - 10

5x - 6x = -10

-x = -10

x = 10

Width = x = 10

Length = 2x - 5

= 2*10 - 5

= 20 - 5

= 15

Perimeter of the room = 5x

= 5 × 10

= 50 square foot

If carpet costs $2.99 a square foot, what the total cost to carpet the living room

Total cost = $2.99 × 50

= $149.50

Simplify the expression. Write answer using only positive exponents.


(1/3a^3)^-4

Answers

Answer:

81/a^12

Step-by-step explanation:

Answer:

81/a^16

Step-by-step explanation:

(1/3a^3)^-4

1/3^-4a^-16

3^4 x 1/a^16

81/a^16

can someone help me, if you get it right ill give you brainiest

Answers

Answer:

4w

Step-by-step explanation:

4w means 4 times w, and if you have four groups of something, you multiply it to see how much there is.

Answer:

4times(x)w

Step-by-step explanation:

i need this done quick!! help!!1!!!1

Answers

Answer:

113.1 inches squared

Step-by-step explanation:

Answer:

the answer is 113.1

Step-by-step explanation:

given

d=12

diameter is half of the radius

so

r=6

now we apply the formula

A=22/7 × 6×6

=792/7

=113.1

i hope the answer is right

PLS HELP (IN CLASS)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! WHAT IS THE ANGLE OF C

Answers

Answer:

50 :D

Step-by-step explanation:

Answer:

<C = 52*

Step-by-step explanation:

180- 2(65) = 52

A telescope is discounted 30%. Sales price is $126. Find the original price.


Pls help meeeeeeee

Answers

Answer:

180 dollars

Step-by-step explanation:

if it was discounted by 30 percent, that means 126 is 70 percent of the orin=inal price. If you divide 126 by 70, you get 1.8 is the money worth 1 percent. Multiply 1.8 by 100 to get the original price, and you end up with 180 dollars.

180, multiply 126 by 100 then divide by 70(representing the remaining 70%) and your left with 180

Ground Turkey meat costs 1.29 per pound. how much would 1.08 pounds of turkey meat cost.

Answers

Answer:

1.194

Step-by-step explanation:

its just keeps going with the four

Please answer this:)

Answers

Answer:

the answer would be 7/100

the answer is 7/100 :) hope that helps

Joanie went to the store to pick up 20 apples for an apple pie. She walked 2 miles per hour. It took her 30 minutes to get to the store by walking. What was her average speed?

Answers

Answer:

1 hour every 30 minutes

Step-by-step explanation:

What is the reference angle for 192°?

A 22°
B. 68°
C. 12°
D. 78°

Answers

Answer:

C. 12°

Step-by-step explanation:

Angle-180°

192°-180°

=12°

if x and y vary inversely and x equals 3 when y=2/3 what is the value of y?

Answers

INVERSE VARIATION

SOLUTION:

First, find the constant of variation k using the equation k=(x)(y)

[tex]3 = \frac{k}{ \frac{2}{3} } [/tex]

[tex]k = (3)( \frac{2}{3} )[/tex]

[tex]k = 2[/tex]

-----------------------

Then, find the value of y.

(I think your given question is incomplete.)

Please help please ASAP please help ASAP please ASAP ASAP

Answers

Answer:

2.79

Step-by-step explanation:

Given

With reference angle 21°

hypotenuse (h) = 3

base (b) = x

Now

cos 21° = b / h

0.93 = x / 3

x = 0.93 * 3

x = 2.79

Hope it will help :)

Please help me asap pleasee Thank you
The table below shows a relationship between x and y.

Which of the following equations best represents this relationship?
F G H or J

Answers

Answer:

J

Step-by-step explanation:

I am not Explaining all that sorry But Thats The Correct Answer

Determine algebraically, three consecutive integers such that the sum of the first and the third is three times the second

Answers

Answer:

x,x+1,x+2

Step-by-step explanation:

x+2[x+1]+3[x+2]= -76

x+2x+2+3x+6= -76

6x+8=-76

6x=-76-8

6x= -84

x= -84/6

x= -14

hope it helps UvU

Describe a sequence of three transformations of ABC that will produce the image A’ B’ C’.

Please help because my homework is due today and I don’t get this question at all.

Answers

Answer:

Reflect over x-axis, Translate 5 units right, Dilate by a factor of 2

Step-by-step explanation:

I think this is correct The dilation probably isn't but those are the three transformations. But i am pretty sure i am right.

Answer:

steps below

Step-by-step explanation:

A(-1,-1)   B(-2,-3)  C(-3,-1)

1. Reflection over y=-1    A(-1,-1)   B(-2,1)  C(-3,-1)

2. Shift to right 4 units   A(3,-1)   B(2,1)  C(1,-1)

3. Dilation with factor 2 and center C'(1.-1)      A'(5,-1)   B'(3,3)  C'(1,-1)

PLZ HELP NEED TWO ANSWERS

Mr. Brown drove from his home to his school at the rate of 25 mph and returned by a different route at the rate of 30 mph. The route by which he returned was miles longer than the route by which he went. The return trip took 10 minutes less than the trip out. Find the distance Mr. Brown traveled each way.

Answers

Answer:

50 from home to school and 55 from school to home.

Step-by-step explanation:

55 is 5 more then 50.

PLEASE HELP solve for X, 12x-72, 3x-3

Answers

Answer:

12x-72

x=8

3x-3

x=-3

Step-by-step explanation:

25abc2-15a2b2c algebra

Answers

Answer:

[tex]25ab {c}^{2} - 15 {a}^{2} {b}^{2} c \\ = 5abc(5c -3ab)[/tex]

is the right answer.

Help would be great!

Answers

Answer:

31 does not belong because it isn't dividable by 3 xx

31 because it is not a multiple of 3

what do you add to 5 1/9 to make 8

Answers

Answer:

2 8/9

Step-by-step explanation:

Answer:

you add 2 and 8/9

Step-by-step explanation:

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