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
lilavasa [31]
3 years ago
14

Answer both? please?

Mathematics
1 answer:
lesya [120]3 years ago
6 0

Answer:

19. 83/8

20. A rational number is a number that can be express as the ratio of two integers. A number that cannot be expressed that way is irrational. Any number that can be written in fraction form is a rational number. This includes integers, terminating decimals, and repeating decimals as well as fractions. An integer can be written as a fraction simply by giving it a denominator of one, so any integer is a rational number.

Step-by-step explanation:

19. 2 1/2 + 3 1/8 + 4 3/4 = 83/8 or 10.375 or 10 3/8

20. A rational number is a number that can be express as the ratio of two integers. A number that cannot be expressed that way is irrational. Your answer for 19 is rational

You might be interested in
Find the value of x in the equation √ x + 5 = √ x + 45.
Ivanshal [37]
There is no solution since 5 doesn't equal 45
8 0
3 years ago
X-5y= -40<br> 18x - 5y = 45<br> What is the answer to this
baherus [9]

Answer:

(5, 9)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

x - 5y = -40

18x - 5y = 45

<u>Step 2: Rewrite Systems</u>

18x - 5y = 45

  1. Multiply both sides by -1:                     -18x + 5y = -45

<u>Step 3: Redefine Systems</u>

x - 5y = -40

-18x + 5y = -45

<u>Step 4: Solve for </u><em><u>x</u></em>

<em>Elimination</em>

  1. Combine equations:                    -17x = -85
  2. Divide -17 on both sides:             x = 5

<u>Step 5: Solve for </u><em><u>y</u></em>

  1. Define equation:                    x - 5y = -40
  2. Substitute in <em>x</em>:                       5 - 5y = -40
  3. Isolate <em>y</em> term:                        -5y = -45
  4. Isolate <em>y</em>:                                 y = 9
4 0
3 years ago
Are the following geomatric sequence if so fin the common ratio 3-12,48-192
viva [34]

Answer:

1 : 4 , 1 : 4

Step-by-step explanation:

= 3 : 12 , 48 : 192

= 3/12 , 48/192

= 1/4 , 1/4

= 1 : 4 , 1 : 4

YOUR ANSWER READY

ANY MORE QUESTIONS

6 0
3 years ago
Read 2 more answers
Father cn go in 8 1/2 an hour.if he travel an average speed of 15 kilometer an hour?
Eva8 [605]
What I'm sorry can you time it better

6 0
3 years ago
HELP!! PLEASE!!! THANK YOU!!
Blizzard [7]

Answer:

C. 8x - 3y = 5

Step-by-step explanation:

7 - 3(x - y) = 5x + 2

Standard form: Ax + By = C

7 -3x + 3y = 5x + 2

7 -8x + 3y = 2

-8x + 3y = -5

Divide by -1 to each number

8x - 3y = 5

6 0
3 years ago
Other questions:
  • WHAT ARE COMMON FACTORS
    6·1 answer
  • What could be the equivalent ?
    5·2 answers
  • What is the equation of the blue line
    8·2 answers
  • if an area can be washed at a rate of 4,900 cm2/ minute, how many square inches can be washed per hour?
    11·1 answer
  • Sustituir. 20c + 15r + 75p + 50e​
    15·1 answer
  • PLEASE HELP ME IM BEGGING
    13·2 answers
  • Figure ABCD is transformed to figure A′B′C′D′:
    9·2 answers
  • Use the Change of Base Formula to evaluate the expression. Then convert it to a logarithm in base 8. Round to the nearest thousa
    12·1 answer
  • Help me please with the question in the photo
    8·1 answer
  • A geographer found that the land area of Aruba is 75 square miles and the land area of Bermuda is 19 square miles. Based on thes
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!