The sum of three numbers is 56. The second number is 2 times the third. The first number is 8 less than the third. What are the numbers?

Answers

Answer 1

Answer:

X = 8

Y = 32

Z = 16

Step-by-step explanation:

X + Y + Z = 56

Y = 2Z

X = Z – 8

Substitute the values from the second and third equation into the first equation:

Z – 8 + 2Z + Z = 56

Simplify

-8 + 4Z = 56

4Z = 64

Z = 16

So if Y = 2Z, Y = 2(16) = 32

And if X = Z – 8, X = 16-8 = 8


Related Questions

I NEED HELP ASAP!!! IM BAD AT MATH

Answers

D 0.752 and 0.232323

20 points
Need help ASAP!!!!!!!

Answers

Answer:

I can't see the assignment question. It says there is nothing attached...

Step-by-step explanation:

Overnight the temperature went from 39*F to -5*F. What is the difference in temperature?

Answers

Answer: The difference in temperature is -44 degrees.

Explanation: Since the new temperature is a negative number and the old was positive, you add them together. However instead of (-5) +39 (which the answer would be 35), you would write 5 +39 because -5 is 5 spaces away from 0. You can also check by using the equation 39 -44. You would get the answer -5, proving that the answer is indeed -44 degrees.
I think 44 but I don’t really know

A man's annual salary is $45000. His tax free allowance total was $13000. He pays tax of 35% on his taxable income. The tax payable is?​

Answers

450000- 13000= 32000

32000×(35/100) = 11200

please help me i need to turn this in

Answers

Answer:

d

Step-by-step explanation:

do this all the time

raised the points, please please help me out

Answers

Answer:

Where is the question?

9. What is the value to the solution for the system of equations y = -5X-9 and y = 2x + 5.​

Answers

9514 1404 393

Answer:

  (x, y) = (-2, 1)

Step-by-step explanation:

Equate the two expressions for y.

  -5x -9 = 2x +5

  -14 = 7x . . . . . . . .add 5x-5

  -2 = x . . . . . . . . . divide by 7

Then ...

  y = 2(-2) +5 = 1

The solution is (x, y) = (-2, 1).

verifying identity plz helpp!
cos(x+y) + cos(x-y) = 2cosx cosy​

Answers

Answer:

2cosx cosy = 2cosx cosy

Step-by-step explanation:

cos(x+y) + cos(x-y) = 2cosx cosy​

Use the formula for "Functions of the sum of two angles" and the "Function of the Difference of Two Angles" and substitute that in.

(Cosx cosy - sinx siny) + (cosx cosy + sinx siny)

Drop the parentheses

Cosx cosy - sinx siny + cosx cosy + sinx siny

Sinx siny can cancel

Cosx cosy + cosx cosy

This can be simplified to

2cosx cosy

out of the 4, which is the solution?​

Answers

Answer:

x=0

Step-by-step explanation:

You can substitute 2-6y in for x to create

9y +2(2-6y) = 3

9y + 4 -12y = 3

-3y = -1

y=1/3

Then plug in y for x=2 -6y

x= 2-6(1/3)

2-2=x

x=0

what equation is equivalent to -12+(-4/5)+31

Answers

Answer: -12 + (4/5) + 31 = 18.2

The Sarsen Circle at Stonehenge has a circumference of 304.7 feet. What is the radius in feet of the Sarsen Circle?

Answers

Answer: r≈48.49ft

Step-by-step explanation:

hoped that help if so plz mark me brainlest =)

Please help me and I’ll give you brainiest make sure to explain :)

Answers

Answer:

y = -2/3x -5

Step-by-step explanation:

First, let's fill in our equation of y = mx + b

(6, -9) is the coordinate we will be subsituting

If the equation that s to the one we are solving we must turn its slope into it's negative reciprocal, which would go from 3/2 to -2/3

Now let's substitute and solve

y = mx + b

(-9) = -2/3(6) + b

-9 = -4 +b

+4   +4

-5 = b

Now we create the equation

y = -2/3x -5

Please help me it would be AMAZING if you can!!!!

Answers

the answer is b (x is greater than or equal to 0 and less than 3)

Answer:

your answer will be (B)

Sulins savings is 75% of Meifens saving. if Sulin save $300, how much does Meifen save?
A) $225
B) $425
C) $325

Answers

9514 1404 393

Answer:

  D) $400

Step-by-step explanation:

We are given the relations ...

  s = 0.75m

  s = 300

Then we can find m by equating the expressions for s:

  0.75m = 300

  m = 300/0.75 = 400

Meifen's savings is $400.

Vary the scale factor n from values less than 1 to values greater than 1. How do the points in the resulting images differ from the corresponding points on the preimage? Describe the general location of the points relative to the center of dilation. What happens to the logo of the sailboat as you vary the scale factor?
PLATO

Answers

Answer: For values of n < 1, all the points on the image move closer to the center of dilation and the logo shrinks. For values of n > 1, all the points on the image move farther from the center of dilation and the logo expands.

Step-by-step explanation: PLATO sample answer. hope it helps :)

Answer:

For values of n < 1, all the points on the image move closer to the center of dilation and the logo shrinks. For values of n > 1, all the points on the image move farther from the center of dilation and the logo expands.

Step-by-step explanation:

plato sample

slove each system of equations using graphing, substitution or elimination. y=2x-3 y=2x+3​

Answers

y=2x-3

y=2x+3

Since the both expressions 2x-3 and 2x+3 are equal to y, set them equal to each other forming an equation in x.

2x-3=2x+3

Cancel equal terms on both sides of the equation

-3=3

The statement is false for any value of x and y , so there is no solution

Help meee please!!!!!!!!!!!!!!!!

Answers

Answer:

i think it A

Step-by-step explanation:

What is the slope of the line through (–2. -6) and (2, 2)?

Answers

2 is the correct slope:)

Answer:

slope is 2

Step-by-step explanation:

hello i need your help againnnn

Answers

Answer: -3 :)

Step-by-step explanation:

Two lengths are in the ratio 2:5. The second length is 75 cm. Find the first length.​

Answers

Answer:

30 cm

Step-by-step explanation:

2 * 15: 5 * 15

    30:75

helppp mee pleaseeeeeeeee

Answers

Answer: It's false.

I believe you would do (5-3) first.

Answer:

false

Step-by-step explanation:

Which of the following is not a polynomial?

Answers

as dhad said c is not the polynomial

Find the measures of the sides of triangle JKL, then classify it by its sides J(-3, 2), K(2,6), L(8, -1)







Answers

Given:

The vertices of the triangle JKL are J(-3, 2), K(2,6), L(8, -1).

To find:

The measures of the sides of triangle JKL and classify it by its sides.

Solution:

Distance formula:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Using distance formula, we get

[tex]JK=\sqrt{(2-(-3))^2+(6-2)^2}[/tex]

[tex]JK=\sqrt{(2+3)^2+(4)^2}[/tex]

[tex]JK=\sqrt{(5)^2+(4)^2}[/tex]

[tex]JK=\sqrt{25+16}[/tex]

[tex]JK=\sqrt{41}[/tex]

Similarly,

[tex]KL=\sqrt{\left(8-2\right)^2+\left(-1-6\right)^2}=\sqrt{85}[/tex]

[tex]JL=\sqrt{\left(8-\left(-3\right)\right)^2+\left(-1-2\right)^2}=\sqrt{130}[/tex]

Now,

[tex]JK^2+KL^2=(\sqrt{41})^2+(\sqrt{85})^2[/tex]

[tex]JK^2+KL^2=41+85[/tex]

[tex]JK^2+KL^2=126[/tex]

[tex]JK^2+KL^2\neq JL^2[/tex]

Since, measure of all sides are different and sum of squares of two smaller sides is not equal to the square of largest side, therefore the triangle is scalene triangle.

help please! True or False: all cells have a cell membrane.

Answers

Answer:

true

Step-by-step explanation:all cells have a cell membrane but not all have cell walls

1.does the table below represent s proportional relationship?_____ 2. if r is the constant of proportionality,what will be the equation y=rx for this relationship ​

Answers

Answer:

tyuiiiiiittghh gf dssddddddddd

Zoe and Josiah are both selling cookie dough for a fundraiser. Although Zoe has already sold 12 tubs, Josiah hasn't sold any yet. If Zoe starts selling 2 tubs per day and Josiah begins selling 4 tubs per day, they will eventually sell the same amount of cookie dough.

Answers

Answer:

6 days

Step-by-step explanation:

Given

Zoe

Sold out = 12

Rate = 2 daily

Josiah

Sold out = 0

Rate = 4 daily

Required

Determine when they sell the same number of tubs

Represent days with d

The number of tubs sold in any give day can be calculated using:

Tubs = Sold out + Rate * Number of days

For Zoe:

Expression: 12 + 2 * d

Expression: 12 + 2d

For Josiah

Expression: 0 + 4 * d

Expression: 4 * d

Expression: 4d

Next, we equate both expressions to get the number of days

4d = 12 + 2d

Collect like terms

4d - 2d = 12

2d = 12

Solve for d

d = 12/2

d = 6

Hence, it'll take 6 days

What is a really good better buy question​

Answers

Answer:

what?

Step-by-step explanation:

Answer: huh? lol

Step-by-step explanation:

what is 7 to the power of -2 divided by 1​

Answers

Answer:

-49

Step-by-step explanation:

Hope this helps

PLZZ MARK BRAINLIEST

7^-2 = 1/7^2 = 1/49
When you divide anything by 1, it’s the same thing before division.
The answer is 1/49

If 2a = 3b, and 4a - 7 = 2b + 9. what is the value of a?

Answers

Answer:

1.5

Step-by-step explanation:

Mrs. Nevin is making a costume for a school play. She needs a piece of fabric that is greater than 1/2 of a yard but less than 5/8 of a yard. Which length of fabric listed below could she use? 3/8 yard 4/7 yard 3/7 yard 2/4 yard thx so much you guys are underrated

Answers

Answer:

4/7 yards

Step-by-step explanation:

Given that :

Required fabric is > 1/2 but < 5/8

Let required fabric = x

Then ;

Converting the fractions to decimal :

1/2 = 0.5 ; 5/8 = 0.625

0.5 < x < 0.625

3/8 yards = 0.375 ;

4/7 yards = 0.571

3/7 yards = 0.429

2/4 yards = 0.5

0.5 < 0.571 < 0.625

From the options, only 4/7 yards satisfies the condition :

Other Questions
If 5, 8 are two adjacent terms in an arithmetic sequence (in that order), then the next term is What is the effect of the write-off of uncollectible accounts (using the Allowance Method) on: a. Net Income b. Net Accounts Receivable PLEASE ANSWER ASAP ITS DUE!!an atom has the radius 310^-11 meters. One of the particles that makes up an atom has a radius of 1 10^-15 meters. About how much larger is the atom than this particle? in the cycle shown is mantle made of silicate rocks?why?answer;Yes,because the mantle under the crust is about 1800miles deep (2890km).It is composed mostly of SILICATE ROCKS in magnesium and iron.or Yes, because it is composed mostly of SILICATE ROCKS in magnesium and iron.beginner hereee! what is the vertex of the parabola using this equation y=-x^2+4x+5 WHAT IS EUKARYOTIC CELL ? PLZ HELP ! Help!!! I need the answer!! anyone here a big fnaf fan? Can someone plz help me I also mark braniliest ! Which of the following represents the graph and y-intercept of the function 3x + y = -2? Rob loves to snowboard in the winter, so he is looking at the cost of ski lift tickets for different mountains. Peak Point is selling 5-day packs for $275.60. Grand Mountain is selling 3-day packs for $174.75. Which mountain offers the better deal? A +4.0 uC charge is placed on the x axis at x= +3.0 m, and a -2.0 uC is located on the y-axis at y= -1.0 m. Point A is on the y axis at y= +4.0 m. Determine the electric potential at point A (relative to zero at the origin). Steven has 10 1/4 pages of homework. If he finishes 2 1/2 pages every ten minutes, how many pages will Steven have left after 10 minutes? A. He has completed all pages of homework.B. 12 3/4 pages C. 7 3/4 pagesD. 2 1/2 pages Can someone show an example of Inverses of Functions Because I do not understand that subject If the cultural value celebrated in this passage is the pride men take in their sons, which quotation from the passage wouldmost likely support that cultural value interpretation?A)"He will be christened Paul, my-Mrs Dombey-of course."B)CD"The earth was made for Dombey and Son to trade in, and the sun andmoon were made to give them light.""A transient flush of faint surprise overspread the sick lady's face asshe raised her eyes towards him.""She feebly echoed, "Of course," or rather expressed it by the motionof her lips, and closed her eyes again."D) Colton's Gym charges an initiation fee of$40 plus a monthly fee of $50. Whichof the equations below shows the costc of joining the gym for m months?O c = 50 + 40mO c = 40 + 50mC + 40 - 50m This homework is really confusing me. PLEASE HELP SOON. i also haven't been able to understand this topic that well so if someone could explain some stuff that would be good Jill and Erika made 4 gallons of lemonade for their lemonade stand. How many liters did they make? If they charge $ 2.00 per liter.How much money will they make if they sell everything? What is the drawling technique of using dots instead of lines called?A. Cross-hatchingB. DottingC. Stippling Divide. Reduce the answer to lowest terms.14/3 4