4. Nine fruit juice bottles contain 4 1/2 litres of fruit juice between them. How much juice do five bottles hold?

2 litres or 2.5 litres

Step-by-step explanation:

From the question, 9 fruit juice bottles contain 4 litres of fruit juice. Therefore, to find how many litres of fruit juice would be contained in 5 fruit juice bottles, you multiply 5 by 4 litres and you divide the product by 9.

i.e. Let the quantity of the fruit juice for 5 bottles be x.

9 juice bottles ===> 4 litres

5 juice bottles ===> x

∴x =

x =

x =

x = 2.5 litres or 2 litres

Hope this helps!!!

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t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680