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The polynomial 40p + 50f + 90 represents the amount of ink, in milliliters, of printing "p" poster and f flyers in
colour. The polynomial 15p+20f + 45 represents the amount of ink, in milliliters, of printing "p" poster and f flyers
in black and white.
How much ink is saved (HINT: use subtraction) if someone prints 26 posters and 45 flyers in black and white rather
than in colour?
ongle below. Then determine the area when
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2 Answers

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The polynomial 40p + 50f + 90 represents the amount of ink, in milliliters, of printing "p" poster and f flyers in

colour.

- 3380 - 1335 = 2045
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color : 40p + 50f + 90

b&w : 15p+20f + 45

p = 26

f = 45

[substitute the values given]

color : 40(26) + 50(45) + 90

b&w : 15(26)+20(45) + 45

[solve the equation]

color : 3380

b&w : 1335

[subtract to see how much ink is saved]

3380 - 1335 = 2045
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