If y varies jointly with x and y =3 when x=2 and z=4 find y when x=8 and z=12

Answers

Answer 1

Answer:

y=10

Step-by-step explanation:

As you can see, the order when x=2 and z=4, is y=x+1, z=y+1, therefore y was 3.

Then, you can find y when x=8 and z=12 by:

12-8=4 (the difference between z and x)

and then divide 4 by 2 (the number of intervals between x, y, and z)

then get 2 (as the difference between x and y.

The answer is 8+2=10.

Hope this helps!


Related Questions

The value of a three digit number if the tens digit is c, the hundreds digit is three less than the tens and the ones digit is 0.

Answers

Answer:690 580 470 360 250 140

Step-by-step explanation:

These digits are all numbers that the hundreds digit is three less than the tens digit, the ones digit is also zero

McConnell owns a small computer firm thag he inherited from his father. He has no other source of income, but he might start another small firm a couple of months later. What form do you think he should fill for filling his returns? A. W-2 form B. IRS return form C. W-4 form D. 1040-EZ form

Answers

Answer:

D) 1040- EZ Form

Step-by-step explanation:

Hope this helps!

Pretty sure it’s d 1040-ez form

6x+15=6x+15 Please solve this equation

Answers

Answer: Infinite solutions

Step-by-step explanation:

First subtract 6x from both sides of the equation to get 15=15.  Because this is true, x has no impact on the equation, and can be any value.

Hope it helps <3

What type of graph is this?​

Answers

Answer:

Hello!

~~~~~~~~~~~~~~~~~

That would be parabola.

~~~~~~~~~~~~~~~~~

Step-by-step explanation: The graph of the quadratic polynomial is a parabola, with the horns pointing upwards if a > 0 or downwards if a < 0. Observe on the graph the behavior of the roots as you change the other two coefficients, b and c. Thus, it is a parabola.

Hope this helped you! Brainliest would be nice!

Solve each system of equations by using elimination.
6a + 6b = 12
6a - 5b = 12
Select one:
a. (1,0)
O b.(2,0)
O c.(3,-0.5)
O d. (2,0.25)​

Answers

Answer:

B. (2, 0)

Step-by-step explanation:

Step 1: Elimination (Subtract the 2 equations/add the 2 equations, one being negative)

b = 0

Step 2: Plug in b to get a

6a - 5(0) = 12

6a - 0 = 12

6a = 12

a = 2

What is 102484838+w is equal to what I need help ASAP

Answers

Answer:

120958130

Step-by-step explanation:

w=18473292

102484838+18473292=120958130

HOPE THIS HELP!

Answer:

120958130

Step-by-step explanation:

102484838+18473292=120958130

Help me plz help me meeee

Answers

Answer:

The last one -

Green 50%

Purple 25%

Black 25%

Step-by-step explanation:

The circle is divided into 4 equal parts.

Green is 2/4 or 1/2 (50%)

Purple is 1/4 (25%)

Black is 1/4 (25%)

Answer:

the last option

A rectangle with an area of 192 square meters has a length and width in a ratio of 3:1. What are the length and width?

Answers

Hey there! :)

Answer:

Length = 24 meters.

Width = 8 meters.

Step-by-step explanation:

Recall that to find the area of a rectangle, the formula is as shown:

A = l × w

In this case, the length is 3 times the length of the width, or 3 : 1.

Let w = width, and

3w = length.

Find the value of w by plugging in these values into the equation:

192 = 3w · w

192 = 3w²

Divide both sides by 3:

64 = w²

Square root both sides:

w = 8 meters. This is the width.

The length is equivalent to 3w, so:

3(8) = 24 meters.

If one quart of paint is exactly enough for two coats of paint on a 9-foot by 10-foot wall, how many quarts of paint are needed to apply one coat of paint to a 10-foot by 12-foot wall? Express your answer as a common fraction.

Answers

Answer:

2/3

Step-by-step explanation:

We are told in the question that

If one quart of paint is exactly enough for two coats of paint on a 9-foot by 10-foot wall

9 foot by 10 foot wall = an area of 9 × 10 = 90ft² × 2 coats of paint = 1 quart of paint

We are to find how many quarts of paint are needed

how many quarts of paint are needed to apply one coat of paint to a 10-foot by 12-foot wall .

10 × 12 = 120ft² × 1 coat of paint = x quart

Mathematically, if

One quart of paint = 90ft² × 2

x quart of paint = 120ft² × 1

Cross multiply

90ft²× 2 × x = 120ft²

x = 120/180

x = 2/3 quart of paint

Answer:2/3

Step-by-step explanation:

I did mathcounts

PreCalculus Unit 3 Activity 90 POINTS

Answers

Answer:

19900kk

Step-by-step explanation:

i need deez points fr doe

Step-by-step explanation:

convert the angle from radian to degree you will get 225°

To draw it draw first 180° then ad 45° to make it easy

Plz help me 3/4(2-3x)

Answers

Answer:

[tex] \frac{3}{2} - \frac{9}{4} x[/tex]

Step-by-step explanation:

[tex] \frac{3}{4} (2 - 3x) \\ [/tex]

Multiply each term in paranthesis by 3/4

[tex] \frac{3}{4} \times 2 - \frac{3}{4 } \times 3x \\ [/tex]

Multiply :

[tex] \frac{3}{2} - \frac{9}{4} x[/tex]

Hope this helps..

Good luck on your assignment..

Answer: x=2/3

Explanation:
3/4(2-3x)=0
(6-9x)/4=0
6-9x=0 x 4
6-9x= 0 (any number time 0 is 0)
-9x=-6
x=-6/-9
x=2/3

Now let’s use x in our equation

3/4(2-3x)=0
now plug x=2/3
3/4(2-3 x 2/3)=0
3/4(2-6/3)=0
3/4(2-2)=0
3/4(0)=0
0=0 (any number time 0 is 0)

And so x = 2/3 is the right answer

What is the intersection of the lines x = -15
and y=5 ?

Answers

Answer:

the point on the plane (-15, 5)

Step-by-step explanation:

These lines are:

1)  a vertical line (x=-15) which implies that all x values of the points that it contains have coordinate x= -15

2) a horizontal line (y=5) which implies that all y values of the points that it contains have coordinate y = 5

Then the intersection must occur at x = -15 and y = 5, that is at the point (-15, 5)

Given:

OA⊥OB, DE tangent at D

Prove: ∠ECD≅∠EDC

Answers

Answer:

x

Step-by-step explanation:

What is the value of x in the equation 5 (4 x minus 10) + 10 x = 4 (2 x minus 3) + 2 (x minus 4)? Negative StartFraction 7 Over 4 EndFraction Negative one-fourth StartFraction 3 Over 20 EndFraction Three-halves

Answers

Answer:

x= 3/2 = 1.5

Step-by-step explanation:

● 5(4x-10)+10x =4(2x-3)+2(x-4)

Simplify the products

● 5*4x-5*10+10x = 4*2x-4*3+2*x-2*4

● 20x-50+10x = 8x-12+2x-8

Add the terms that don't contain x with each other

●20x-50+10x = 8x-20+2x

Add 20 in both sides

●20x-50+20+10x = 8x-20+2x+20

●20x-30+10x = 8x+2x

Add together the terms that contain x

●30x -30 = 10x

Add -10x in both sides

●30x-30-10x = 10x-10x

● 20x -30 = 0

Add 30 in both sides

● 20x-30+30 = 30

● 20x = 30

Divide both sides by 20

●20x/20 = 30/20

● x= 30/20

● x= 3/2

● x= 1.5

Answer:

3/2

Step-by-step explanation:

Two bus services A and B arrive at a station. Service A has a frequency of arrival of 15
mins while Service B operates with a frequency of 20 mins. The first buses arrive at 8am.
When will they arrive at the station together the next time.

Answers

Answer:

9:00am

Step-by-step explanation:

Bus A:

8:00, 8:15, 8:30, 8:45, 9:00, 9:15, 9:30, 9:45, 10:00, 10:15, 10:30, 10:45, 11:00

Bus B:

8:00, 8:20, 8:40, 9:00, 9:20, 9:40, 10:00, 10:20, 10:40, 11:00

Bus A and Bus B will both arrive at the bus stop at 9:00

PLEASE HELP ME ASAP!!!! I DON'T UNDERSTAND THIS!!!!​

Answers

Answer: 62

Step-by-step explanation:

The surface area of a rectangular prism is 2(wl+hl+hw).

Simply plug in the values to get 62

Answer:

62cm ^2

Step-by-step explanation:

every cube has 6 sides,

2(3*5) + 2(2*3)+ 2(2*5)=

2(15)+2(6)+2(10)=

30+12+20=

62

which ones do i check

Answers

Answer:

Has exactly one pair of parallel sides.

Step-by-step explanation:

Has exactly one pair of parallel sides.

Has exactly one pair of parallel slides

in the diagram below, p is circumscribed about quadrilateral abcd. what is the value of x

angle c= 88 degrees
angle a= x+10 degrees

Answers

Answer:

40

Step-by-step explanation:

n + 42/–3 = –2 n = ______

Answers

━━━━━━━☆☆━━━━━━━

▹ Answer

n = 12

▹ Step-by-Step Explanation

n + 42 ÷ -3 = -2

n - 14 = -2

n = -2 + 14

n = 12

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

━━━━━━━☆☆━━━━━━━

Answer:

[tex]n=12[/tex]

Step-by-step explanation:

[tex]n+\frac{42}{-3}=-2[/tex]

[tex]n + -14 = -2[/tex]

[tex]\mathrm{Add\:}14\mathrm{\:to\:both\:sides.}[/tex]

[tex]n + -14+14 = -2+14[/tex]

[tex]\mathrm{Simplify}.[/tex]

[tex]n=12[/tex]

A rectangular window is topped with a semicircle the height of the rectangle part is 1 more than 3 times its width W meters which function represents the total area A of the window in terms of the width

Answers

Answer:

A(w) = w(1 + 3w) + pi(w/2)^2/2

Step-by-step explanation:

ASK YOUR QUESTION

lambobacon3244

07/24/2018

Mathematics

High School

+5 pts

Answered

A rectangular window is topped with a semicircle on top. the height of the rectangular part is 1 more than 3 times its width , w meters which function represents the total area?

A.) A(w) = w(1 + 3w) + pi(w/2)^2

B.) A(w) = w(1 + 3w) + pi(w/2)^2/2

C.) A(w) = w(1 + 3w) + pi(w)^2/2

D.) A(w) = w(1 + 3w) + pi(w)^2

1

SEE ANSWER

ADD ANSWER

Answers

lambobacon3244 is waiting for your help.

Add your answer and earn points.

DeanR

DeanRGenius

In general for a rectangle of dimensions w by h and a semicircle of diameter w we get an area:

A = wh + \frac 1 2 \pi (\frac w 2)^2

The halfs are because a semicircle is half a circle and a radius is half a diameter.

We're told

h = 1+ 3w

Substituting,

A(w) = w(1+3w) + \frac 1 2 \pi (\frac w 2)^2

tats

please help look at the picture....

Answers

x6 , x6 , x6 , x6 , x6

Factor 3y 2 - 4y. a. y(4 - 3y) b.y(3y - 4) c.y(4y - 3)

Answers

Answer:

b. y(3y - 4)

Step-by-step explanation:

[tex]3 {y}^{2} - 4y \\ = y(3y - 4)[/tex]

SOMEONE PLEASE HELP ME ASAP PLEASE!!!​

Answers

Answer:

20°

solution,

Angles in a straight line ( linear pair)= 180°

180°-110°=70°

Now,

Sum of angle in triangle= 180°

[tex]70 + x + x + 70 = 180 \\ or \: 70 + 2x + 70 = 180 \\ or \: 140 + 2x = 180 \\ or \: 2x = 180 - 140 \\ or \: 2x = 40 \\ or \: x = \frac{40}{2} \\ x = 20[/tex]

Hope this helps...

Good luck on your assignment...

if (ax+b)(ax+c)=4x^2-25 for all values of x, and a, b, and c are constants, what is the value of b+c?

Answers

Answer: 10.

Step-by-step explanation:

You are given the equation

(ax+b)(ax+c)=4x^2-25

Expand the Left hand side by opening the bracket.

a^2x^2 + axc + abx + bc

a^2x^2 + (axc + abx) + bc = 4x^2 + 0x - 25

From the equation above, we can see that;

a^2x^2 = 4x^2

a^2 = 4

a =  √4

a = 2

Also, axc + abx = 0x

axc = abx

ax will cancel out from both sides

c = b

From the equation, bc = 25

But c = b. Substitute c for b

b^2 = 25

b =  √25

b = 5 = c

b + c is therefore 5 + 5 = 10

80.5 square feet scaled up by a factor of 10​

Answers

Answer:

805

Step-by-step explanation:

Scaling up by a factor of ten means that you must multiply the original number by 10. Because 10 has one zero, the best way to figure this out is just moving the decimal to the right ONCE (just like there is ONE zero)! This gives us 805.

If you have any other questions about this concept, please comment on my answer!!

PLEASE HELP ME I need it ASAP

Answers

Answer:

First question: D Second question: A

Step-by-step explanation:

Use the formulas given and plug them in

PLSSS HELPPPP Find |6 - 2i| by the way this is solving complex numbers

Answers

Answer: 2√ 10

Step-by-step explanation:

Answer 2 square root 10

Find (F/g)(x)
F(x) = sqrt x^2-1
g(x) sqrt x-1

Answers

Answer:

Option A. √(x + 1)

Step-by-step explanation:

Data obtained from the question include:

f(x) = √(x² – 1)

g(x) = √(x – 1)

(f/g) (x) =..?

(x² – 1) => difference of two square

(x² – 1) => (x – 1)(x + 1)

f(x) = √(x² – 1)

f(x) = √(x – 1)(x + 1)

(f/g) (x) = f(x) /g(x)

f(x) = √(x – 1)(x + 1)

g(x) = √(x – 1)

(f/g) (x) = √(x – 1)(x + 1) / √(x – 1)

(f/g) (x) = √[(x – 1)(x + 1) / (x – 1)]

(f/g) (x) = √(x + 1)

HELP! I WILL GIVE BRAINLIEST AND RATING!



Which of the following can be represented by the equation below? $846 = $87 + $23M A. Tom wants to save $87, he already has $23, and he deposits $846 each month, M. B. Tom wants to save $846, he already has $87, and he deposits $23 each month, M. C. Tom wants to save $87, he already has $846, and he deposits $23 each month, M. D. Tom wants to save $846, he already has $23, and he deposits $87 each month, M.

Answers

Answer:

The answer is C.

Answer:

B. Tom wants to save $846, he already has $87, and he deposits $23 each month, M.

Step-by-step explanation:

$846 = $87 + $23M

The $846 represents the amount that he wants to save. $23M represents how much money he wants to deposit every M months. $87 represents the amount that he has already deposited (the constant).

And so, the correct answer will be B. Tom wants to save $846, he already has $87, and he deposits $23 each month, M.

Hope this helps!

In how many ways can we put five identical fruits into three bowls? Note that the bowls may be empty. And no, the answer is NOT 243

Answers

Answer:

25

Step-by-step explanation:

The answer is 25. Here is a solution using the formulas:

For 3_1_1

(5C3*2C1*1C1)/2! = 10

For 2_2_1

(5C2*3C2*1C1)/2! = 15

10+15=25

Not 100% sure just double check

Answer:

216

Step-by-step explanation:

There are 6 possibilities for each bowl. (0-5)

6x6x6=216

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