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
Lana71 [14]
3 years ago
7

the sum of 3 numbers is 9. tge second number is 3 less than the first.the thirf number is four morethan twice the first. find ea

ch number
Mathematics
2 answers:
borishaifa [10]3 years ago
7 0
<h3><u>The value of the first number, x, is eual to 2.</u></h3><h3><u>The value of the second number, y, is equal to -1.</u></h3><h3><u>The value of the third number, z, is equal to 8.</u></h3>

x + y + z = 9

y = x - 3

z = 2x + 4

Because we have values for y and z, we can find the exact value of x, which we can use to find the exact values for the other variables.

x + x - 3 + 2x + 4 = 9

<em><u>Combine like terms.</u></em>

4x + 1 = 9

<em><u>Subtract 1 from both sides.</u></em>

4x = 8

<em><u>Divide both sides by 4.</u></em>

x = 2

Now that we have a value for x, we can plug this value in to each other x value to solve for y and z.

y = 2 - 3

y = -1

z = 2(2) + 4

z = 8

enot [183]3 years ago
3 0
Answer is 8 sorry if I’m incorrect
You might be interested in
Please use desmos.com to graph and list the coordinates on here. ASAP HELP!!!!
elena-s [515]
Add all the number the points are on and you get your answer
3 0
3 years ago
Read 2 more answers
if you draw one card from a standard deck, what is the probability of drawing a diamond or a red card?​
Aleks [24]

Answer:

3/4 probability

probability to draw a red card = 11/26

probability to draw a diamond =1/4

probability of drawing one or other card = 35/52

# actually i am not sure

4 0
3 years ago
A 2 by 3 rectangle contains 8 squares. A 3 by 4 rectangle contains 20 squares. A 4 by 6 rectangle contains 50 squares. What size
scZoUnD [109]

Answer:

The rectangles that have exactly 100 squares are 1 by 100  4 by 11 and 5 by 8

Step-by-step explanation:

The given parameters are;

A 2 by 3 rectangle contains 8 squares

A 3 by 4 rectangle contains 20 squares

A 4 by 6 rectangle contains 50 squares  

We note that the number of squares varies proportionately to the increase in the dimension of the rectangle, that is we have;

2 by  3 rectangle contains 8 squares

3 by 4 rectangle contains 20 squares increase by 12 = 3 × 4

4 by 5 rectangle contains 40 squares increase by 20 = 4 × 5

The number of squares formed can therefore be arranged in a matrix as follows(please see attached matrix);

Column,     1,       2,     3,      4,       5,     6,        7,       8,         9,           10,         11

Row

1

2

3

4

5

6

7

8

9

10

11

It will be observed that after reaching a point where the row and column are equal, (x, x) the rate of increase in the number of squares become constant and equal to x × ((x - 1) × 0.5) + 1) = x × (x + 1)/2

From the matrix, the rectangles that have exactly 100 squares are 1 by 100  4 by 11 and 5 by 8 and there are no more as presented in the attached matrix, the number of squares formed keeps increasing for each column and row added.

4 0
3 years ago
Circle A has center of (2, 8), and a radius of 2 and circle B has a center of (5, 4), and a radius of 10. What steps will help s
Viktor [21]

Answer:

1. Translate circle A using the rule (x − 3, y + 4).

4. Dilate circle A by a scale factor of 5

Step-by-step explanation:

we know that

All circles are similar figures

step 1

Translate the center of circle A to the center of circle B

we have

A(2,8) -----> B(5,4)

so

The rule of the translation is

(x,y) ----> (x+a,y+b)

(2,8) ----> (2+a,8+b)

2+a=5 ----> a=5-2=3

8+b=4 ---> b=4-8=-4

therefore

The rule of the translation is

(x,y) ----> (x+3,y-4)

step 2

Divide the radius of circle B to the radius of circle A to find out the scale factor

10/2=5

so

Multiply the radius of circle A by the scale factor to obtain the radius of circle B

therefore

Dilate circle A by a scale factor of 5

3 0
3 years ago
Simplify 7y+2x - 10y+3x to the second power -10x
lara [203]

7y+2x - 10y+3x^2-10x=(3x^2)+(2x-10x)+(7y-10y)\\\\=3x^2-8x-3y

4 0
3 years ago
Other questions:
  • A walffle cone has a height of 7 inches and a diameter of 3 inches. What is the volume of ice cram that can be contained within
    15·1 answer
  • A cookie jar contains 6 chocolate chip cookies, 4 oatmeal cookies, 8 peanut butter cookies, and 2 sugar cookies. If a cookie is
    8·1 answer
  • A bag has 2 blue marbles, 3 red marbles, and 5 white marbles. Which event have a probability greater than 1/5
    6·2 answers
  • PLEASE HELP QUICKLY I WILL MARK BRAINLIEST AND IF YOU ARE TRYING TO GET FREE POINT I WILL REPORT YOU
    11·2 answers
  • Mr.rodriguez invests half money in land a tenth in stocks and a twentieth in bonds he puts the remaining 35,000 in his savings a
    9·2 answers
  • 1<br> What is the solution to the equation 5x + 4 =19
    15·1 answer
  • I need help fast!!!
    13·1 answer
  • What is the slope and rate of change brainliest 40 points
    15·2 answers
  • A downtown building is 880 feet tall. Ana makes a scale model of the building at 1:440 of its actual size how tall is the model?
    15·1 answer
  • How many terms does the polynomial have? 2p2q−3pq 1 2 3 4
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!