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klio [65]
3 years ago
13

3a+7+2(3+a) simpilify

Mathematics
1 answer:
Vladimir [108]3 years ago
6 0

Answer: The answer is 5a+13

Step-by-step explanation:

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A bag contains 9 blue marbles and 3 red marbles. You draw three marbles without replacement. What is the probability of drawing
velikii [3]

Answer:

9/3 is the same as  3/1

Step-by-step explanation:

6 0
4 years ago
What is the y value of the solution to the system of equations given? y=5x-3 3x-2y=27
nignag [31]

Answer:

y = -18

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

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

y = 5x - 3

3x - 2y = 27

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

  1. Define:                                        3x - 2y = 27
  2. Add 2y on both sides:               3x = 2y + 27
  3. Divide 3 on both sides:              x = 2/3y + 9

<u>Step 3: Redefine</u>

y = 5x - 3

x = 2/3y + 9

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

  1. Substitute in <em>x</em>:                              y = 5(2/3y + 9) - 3
  2. Distribute 5:                                  y = 10/3y + 45 - 3
  3. Combine like terms:                     y = 10/3y + 42
  4. Subtract 10/3y on both sides:      -7/3y = 42
  5. Divide -7/3 on both sides:            y = -18
8 0
3 years ago
A cafeteria sells 6 times as many bottles of juice. if the cafeteria sells 750 bottles of water. how many bottles of juice did t
faltersainse [42]

Answer:

<h2>4,500 bottles of juice.</h2>

Step-by-step explanation:

<h3>Clue word: Times means multiply</h3><h3>If you multiply 750 x 6 you will get 4,500.</h3>
5 0
2 years ago
Write the decimal as a fraction ​
kozerog [31]

Answer:3/25

Step-by-step explanation:

Since we multiplied 0.12 with 100 to get 12, it is important to divide 12 by 100 so that it will remain equivalent to 0.12. By doing so, we have a fraction as shown below: Notice that, we can simplify 12/100 by dividing the numerator and denominator with 4. Hence, we get 3/25.

4 0
3 years ago
How many feet are in 4 miles?
Anni [7]
To find the amount of feet in 4 miles you will need to take the amount of feet in 1 mile and multiply that by 4 to receive your answer hope this helps. 5280(feet per mile)*4=21120
8 0
3 years ago
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