1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vera_Pavlovna [14]
3 years ago
6

There are three numbers. The first number is twice the second number. The third number is twice the first number. The sum of the

three numbers is 112.
Mathematics
2 answers:
Nookie1986 [14]3 years ago
6 0

Answer:

1st number = 36

Second = 16

Third = 64

Step-by-step explanation:

We have 3 numbers

Let's call the second number g

Then the first would be , 2x g = 2g

Then the third would be twice the first = 2 x 2g = 4g

We add up all numbers and equate it to 112

2g + g +4g = 112

7g = 112

g = 112/7

g = 16

First number = 2g = 2x16 = 32

Second number = g = 16

Third number = 4g = 4x16 = 64

Therefore the numbers are 32, 16, 64.

I hope this helps!

mel-nik [20]3 years ago
5 0

Answer:

x = 32 y = 16 z = 64

Step-by-step explanation:

x is the 1st number

y is the 2nd number

z is the 3rd number

The first number is twice the second number so

x = 2 y

The third number is twice the first number.

z = 2 x

Their sum is 112

x + y + z = 112

Plus in what we know:

x + y + z = 112

2 y + y + 2x = 112

3y + 2x = 112 Let's solve for y and subtract 2x from each side

3y = 112 - 2x  Divide both sides by 3

y = \frac{112 - 2x}{3}

Now plug our answer back in to solve for x.

x = 2y

x = 2 ( \frac{112 - 2x}{3} )

x = (224 - 4x) / 3    Multiply each side by 3.

3x = 224 - 4x         Add 4x to each side

3x + 4x = 224

7x = 224              Divide each side by 7

7x / 7 = 224 / 7

x = 32

Now we can solve for z.

z = 2x

z = 2 ( 32 )

z = 64

Now we can solve for the numerical value of y.

x + y + z = 112

32 + y + 64 = 112

96 + y = 112       Subtract 96 from each side.

y = 112 - 96

y = 16

You might be interested in
Help me, please !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!HELP ME PLEASE
Dmitry_Shevchenko [17]

A histogram will show how quickly over time how many donations were made.

5 0
3 years ago
The length of a diagonal of a cube with edge length 25cm
elena-s [515]
Let's take any edge length l. The diagonal has length l\sqrt3. In our case it's 25\sqrt3
6 0
3 years ago
What is true of the data in the dot plot? Check all that apply.
NNADVOKAT [17]

Answer:

True answers

The center is 13

The peak is at 14

It has two clusters

It is skewed left

The person waited for the bus 16 times

Step-by-step explanation:

Edge2021

6 0
3 years ago
Read 2 more answers
For each function, find f(-1), f(1), and f(3)<br> f(x)=3x-4
Anna [14]

Answer:

f(x)= 3x-4

f(-1)= 3*-1-4

f(-1)= 2-4

f(-1)= -2

f(x)= 3x-4

f(3)= 3*3-4

f(3)= 9-4

f(3)=5

f(x)= 3x-4

f(1)= 3*1-4

f(1)= 3-4

f(1)= -1

Step-by-step explanation:

6 0
2 years ago
PLEASE HELP What is the volume?<br><br> 0.3 ft<br> 0.3 ft<br> 0.3 ft<br><br> cubic feet
Firlakuza [10]
0.3 is CB ft so 3€ is 4 in Us
8 0
2 years ago
Read 2 more answers
Other questions:
  • The following data points represent the number of animal crackers in each kid's lunch box.
    5·2 answers
  • (13x+14)(6x-5)=0<br> Solve by factoring
    10·1 answer
  • A rectangle is called cool if the number of square units in its area is equal to twice the number of units in its perimeter. A c
    5·1 answer
  • cranes cookie company can make a batch of cookies for $10.75 . They mark it up 40% so they can make a profit . How much do they
    13·1 answer
  • HELP PLEASE I NEED HALP
    9·1 answer
  • Please tell me where to graph this!! (include if i open circle or not please) (NO FILE ANSWER!!!)
    15·2 answers
  • Find all zeros.<br><br> I’m having a complete brain fart
    13·1 answer
  • A video game rental charges of $50 membership fee and $8 for each game rented right a linear equation in slope intercept form to
    13·1 answer
  • Simplify 6^9/6^3<br><br> 20 characters :/
    12·1 answer
  • Solve the following proportion for x.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!