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trapecia [35]
2 years ago
12

mary is 14. In four years, her age will be 2/3 the age of her sister. How old will Mary's sister be in two years

Mathematics
1 answer:
aniked [119]2 years ago
5 0

Answer:

25

Step-by-step explanation:

in four years, mary's sister will be 27. then, we subtract 4 years and add 2 to get that she will be 25.

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Kruka [31]

Answer:

4x - 2y = -8--------equation 1

y = 2x + 4

or, -2x+y=4---------equation 2

multiply equation 2 by 2 and solving equation 1and2 we get,

4x - 2y = -8

-4x+2y=8

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3 years ago
Determine the solution to f(x) = g(x) using the following system of equations:
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B. 4. 

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What is the gradient of a line with an equation of 3x-2y-6=0​
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Answer:

Slope <em>m</em> = 3/2

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

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  • b - y-intercept

Step-by-step explanation:

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

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<u>Step 2: Rewrite</u>

<em>Find slope-intercept form</em>

  1. Subtract 3x on both sides:                    -2y - 6 = -3x
  2. Add 6 on both sides:                             -2y = -3x + 6
  3. Divide -2 on both sides:                         y = 3/2x - 3

<u>Step 3: Break Function</u>

<em>Identify Parts.</em>

Slope <em>m</em> = 3/2

y-intercept <em>b</em> = -3

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