Find the total amount required to buy 30 calculators that cost $8.80 each (Use distributive property).

$248

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$250

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$254

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$264

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Solution

The correct option is D $264 G i v e n, C o s t o f e a c h c a l c u l a t o r =$ 8.80
Total number of calculators = 30
So, total cost = Total number of calculators x cost of each calculator
=30 x 8.80
We can write 8.80 as (9 - 0.20)
Therefore, total cost = 30 x (9-0.20)
=(30x9)-(30x0.20)
[Using distributive property,
a x (b - c) = a x b - a x c)]
= 270 - 6
= 264

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