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Dmitry [639]
3 years ago
5

If hector is 8 years old and Mary is 3 years old how old will Mary be when hector is 16?

Mathematics
2 answers:
Bess [88]3 years ago
7 0

Answer:

Mary will be 11 years old

Step-by-step explanation:

Common knowledge.

olya-2409 [2.1K]3 years ago
7 0

Answer: Mary should be 11yrs old

Step-by-step explanation:

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6y+4−3y−7=3(y−1) How many solutions are for this?
Kryger [21]

Answer:

Infinite amount of solutions.

General Formulas and Concepts:

  • Order of Operations: BPEMDAS
  • Regular + Equality Properties

Step-by-step explanation:

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

6y + 4 - 3y - 7 = 3(y - 1)

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

  1. Combine like terms:                         3y - 3 = 3(y - 1)
  2. Distribute 3:                                       3y - 3 = 3y - 3
  3. Subtract 3y on both sides:               -3 = -3

Here we see that there will be infinite amount of solutions. We can plug in any number <em>y</em> and it will render the equation true.

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(a^m)^n = a^ m*n hope the helps

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When y = 7, what is the value of x?
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Answer:-1 as said in the bottom of the equation

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