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erastovalidia [21]

2 years ago

11

WORTH 25 POINTS AND WILL MARK BRANLIEST Write an expression that can be used to determine the final cost of the cards. ThE ANSWE

R IS 0.8268 JUST NEED AN EXPRESSION

2 answers:

vlada-n [284]2 years ago

6 0

Answer: ...

Step-by-step explanation: I will rather let you use a variable and solve (for example: x!

Sladkaya [172]2 years ago

4 0

Solve for X would be a great way like the person above me

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Answer:

$y + 3 = -1\frac{3}{5}[x - 2]\:or\:y - 5 = -1\frac{3}{5}[x + 3]$

Step-by-step explanation:

First, find the <em>rate of</em><em> </em><em>change</em><em> </em>[<em>slope</em>]:

$\frac{-y_1 + y_2}{-x_1 + x_2} = m$

$\frac{-5 - 3}{3 + 2} = -\frac{8}{5} = -1\frac{3}{5}$

Now input the slope into the Point-Slope Formula. In this formula, all negative symbols give the OPPOSITE terms of what they really are, so be EXTREMELY CAREFUL inserting the coordinates into the formula with their CORRECT signs:

$y - y_1 = m[x - x_1]$

$y + 3 = -1\frac{3}{5}[x - 2]\:or\:y - 5 = -1\frac{3}{5}[x + 3]$

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