3 years ago

How to solve a mixed number fraction

1 answer:

8 0

You find a common denominator (the bottom one) and then add the numerator (the top) but you don't add the denominator, you just make it the same

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What is an equation of the line that passes through the points (4, -6) and (8, -4)

QveST [7]

$\bf (\stackrel{x_1}{4}~,~\stackrel{y_1}{-6})\qquad (\stackrel{x_2}{8}~,~\stackrel{y_2}{-4}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-4}-\stackrel{y1}{(-6)}}}{\underset{run} {\underset{x_2}{8}-\underset{x_1}{4}}}\implies \cfrac{-4+6}{4}\implies \cfrac{2}{4}\implies \cfrac{1}{2}$

$\bf \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-6)}=\stackrel{m}{\cfrac{1}{2}}(x-\stackrel{x_1}{4}) \\\\\\ y+6=\cfrac{1}{2}x-2\implies y=\cfrac{1}{2}x-8$

3 0

3 years ago

Read 2 more answers

A blouse that regularly sells for $28.50 is on sale for one-third off. what is the sale price of the dress?

egoroff_w [7]

You have to multiply the original price by 1/3 and then multiplying it by 2:
y=1/3x(2)
y=1/3(28.5)(2)
y=9.50(2)
y=19
$19.5
This is 2/3 of the original price (1/3 off).
Hope I helped...

7 0

3 years ago

If ABCD is an isosceles trapezoid, what is the value of x? AC = 5x - 25 BD = 3x + 11

bija089 [108]

Answer:

X=18

Step-by-step explanation:

Isosceles means two sides are equal. In this case AC and BD are the same. So put both equations equal to each other and solve

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3 years ago

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ANYONE i need help more than ever this is my ls day of school