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2 years ago

10

Marcia is typing her report for history class.She can type 4 pages in 48 minutes. At that rate, how many pages does she type per

hour?

1 answer:

ki77a [65]2 years ago

7 0

Answer:

5 pages

Step-by-step explanation:

Set up a proportion:

4/48=x/60

Cross multiply=

4 x 60=240,

240/48=5

4/48=5/60

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X + y = 8 and x + 2y =14

cricket20 [7]

Answer:

x = 2

y=6

Step-by-step explanation:

6 + 2 = 8

2 + 6 x 2 = 14

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If y varies inversely as x and y=23 when x=8 find y when x=4

valina [46]

<h2>INVERSE VARIATION</h2>

<em>E</em><em>Q</em><em>U</em><em>A</em><em>T</em><em>I</em><em>O</em><em>N</em><em>:</em><em> </em><em> </em><em> </em><em> </em>

$y = \frac{k}{x}$

<em>–</em><em>–</em><em>–</em><em>–</em><em>–</em><em>–</em><em>–</em><em>–</em>

First, find the constant of variation <em>k</em> using the formula k=xy.

$23 = \frac{k}{8}$

$k = (8)(23)$

$k = 184$

<em>–</em><em>–––––––</em>

Then, find <em>y</em> if <em>x</em> is equal to four using the formula y=184/x.

$y = \frac{184}{x}$

$y = \frac{184}{4}$

$y = 46$

<em>F</em><em>i</em><em>n</em><em>a</em><em>l</em><em> </em><em>A</em><em>n</em><em>s</em><em>w</em><em>e</em><em>r</em><em>:</em>

<h2>y = 46</h2>

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2 years ago

Sam and Hector are gaining weight for football season. Sam weighs 205 pounds and is gaining two pounds per

Mademuasel [1]

Answer:

10 weeks

Step-by-step explanation:

205+2t=195+3t

-2t -2t

205=195+t

-195 -195

10=t

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3 years ago