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Kaylis [27]
3 years ago
10

-20 = -0.8k how do you solve this two-step equation

Mathematics
2 answers:
svetlana [45]3 years ago
8 0

Answer:25

Step-by-step explanation: divide -20\-.08

IgorLugansk [536]3 years ago
7 0

Answer:

-20 divided by -0.8 which is 25

Step-by-step explanation:

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What is the slope of a line perpendicular to the line whose equation is 5x - y = -7.
BARSIC [14]

keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above

5x-y=-7\implies 5x-y+7=0 \\\\\\ \stackrel{\stackrel{m}{\downarrow }}{5} x+7=y\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array}

so a line perpendicular to that one above will have a slope of

\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{5\implies \cfrac{5}{1}} ~\hfill \stackrel{reciprocal}{\cfrac{1}{5}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{1}{5}}}

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2 years ago
Which absolute value function has a graph that is wider than the parent function when graphed represents the parent function f(x
Advocard [28]
The answer to this is B
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4 years ago
Read 2 more answers
How do you do n2-14+48
Arturiano [62]
N² - 14 + 48
n² + (-14 + 48)
n² + 28

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3 years ago
What is the upper quartile of the box plot graph?
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Answer: Choice A) 90

The upper quartile, aka the third quartile (Q3), is visually represented by the right-side edge of the box, which is at 90 on the number line. 
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I was at the store and saw two sizes of avocados being sold. The regular size sold for $0.79 each. For what prices would the lar
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