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podryga [215]
3 years ago
15

When printing an article of 2400 words, an entrepreneur decides to use two sizes of letters, using the largest one a printed pag

e contains 1200 words. Using the smallest, the page contains 1500 words the article must occupy 17 full pages in the magazine how many pages must be printed using small letters?
Mathematics
1 answer:
olga55 [171]3 years ago
6 0

Step-by-step explanation:

x= Number of small pages

y= Number of full pages

1 x + 1 y = 21 .............1

Total words

1200 x + 1500 y = 27000 .............2

Eliminate y

multiply (1)by -1500

Multiply (2) by 1

-1500 x -1500 y = -31500

1200 x + 1500 y = 27000

Add the two equations

-300 x = -4500

/ -300

x = 15

plug value of x in (1)

1 x + 1 y = 21

15 + y = 21

y = 21 -15

y = 6

y = 6

x= 15 Number of small pages

y= 6 Number of full pages

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Find the value of x that make it true
lesantik [10]

Answer:

Step-by-step explanation:

1). 10 = \frac{1+7x}{7+x}

   10(7 + x) = 1 + 7x

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   3x = -69

   x = -23

2). 0.2 = \frac{6+2x}{12+x}

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3). 0.8 = \frac{x}{x+0.5}

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4). 3.5 = \frac{4+2x}{0.5-x}

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6 0
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Vikentia [17]

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Given: Monthly pass fee = $90

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Total amount = (Monthly fee)  + (Number of times) (Additional charge)

Total amount = 90+4x                (i)

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From (i) and (ii) , we get

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Hence, the number of times you have to go to the gym in order for it to cost the same amount= 10

Hence, the correct option is C. 10.

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