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Veronika [31]
4 years ago
7

What is 2/5 of 25?? Need helpppppppp

Mathematics
1 answer:
mrs_skeptik [129]4 years ago
3 0
10
Workings out
(2/5)*25=10
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-41 = -2/5(45n+60) + n <br><br> please show your work, i’ll mark as brainliest
Nina [5.8K]

Answer:

n = 1

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
  • Subtraction Property of Equality

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

-41 = -2/5(45n + 60) + n

<u>Step 2: Solve for </u><em><u>n</u></em>

  1. Distribute -2/5:                                                                                               -41 = -18n - 24 + n
  2. Combine like terms:                                                                                       -41 = -17n - 24
  3. [Addition Property of Equality] Add 24 on both sides:                                -17 = -17n
  4. [Division Property of Equality] Divide -17 on both sides:                              1 = n
  5. Rewrite/Rearrange:                                                                                        n = 1

<u>Step 3: Check</u>

<em>Plug in n into the original equation to verify it's a solution.</em>

  1. Substitute in <em>n</em>:                                                                                                -41 = -2/5(45(1) + 60) + 1
  2. (Parenthesis) Multiply:                                                                                    -41 = -2/5(45 + 60) + 1
  3. (Parenthesis) Add:                                                                                          -41 = -2/5(105) + 1
  4. Multiply:                                                                                                           -41 = -42 + 1
  5. Add:                                                                                                                 -41 = -41

Here we see that -41 does indeed equal -41.

∴ n = 1 is the solution to the equation.

6 0
3 years ago
1st term in expansion of (x - y)
Andreas93 [3]

Step-by-step explanation:

x y is the the side of the perimeter if u know what I mean

7 0
4 years ago
Solve the equation. n+34=14
wlad13 [49]

Answer:

n = -20

Step-by-step explanation:

Subtract 34 on both sides of the equation:

n = 14 - 34

n = -20

Hope this helps!

4 0
3 years ago
Read 2 more answers
How do I write 125,740,689 in expanded form and in words
vagabundo [1.1K]
Answer:

100,000,000 + 20,000,000 + 5,000,000 + 700,000 + 40,000 + 600 + 80 + 9

One hundred twenty five million, seven hundred forty thousand six hundred eighty nine

Step-by-step explanation:



3 0
3 years ago
GEOMETRY HELP PLEASE!!!!!!! I REALLY NEED HELP FAST!!!!!!! I WILL GIVE BRAINLIEST!
aleksandrvk [35]

2. Definition of linear pair

3. Linear pair theorem

4. Definition of supplementary angles

5. m<1 + m<2 + m<3 = 180

6. Substitution property of equality

7. m<1 + m<2 + m<4

7. Subtraction property of equality

4 0
4 years ago
Read 2 more answers
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