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Gnesinka [82]
3 years ago
15

2020-21

Mathematics
1 answer:
Dvinal [7]3 years ago
5 0

Answer: Brain paid $ 45.5 for the jacket.

Step-by-step explanation:

Given: Original price of jacket = $ 65

Discount -= 30%

Price after discount = Original price - 30% of Original price

= 65 - 30% of 65

= 65 - (0.3) x 65    [30% = 0.3]

= (65)   (1-0.3 )             [Taking 65 common]

= (65)(0.7)

= $ 45.5

Hence, Brain paid $ 45.5 for the jacket.

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These are the rules for when a and b are negative numbers.
a + b = b + a
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Also, if a is a positive number, while b is a negative number, we see these rules:
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For example,

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Also, if a is a negative number while b is a positive number, then these rules will apply:
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For example,

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-1.12 = <span>-1.12
</span>
-3.96 - 2.84 = -2.84 - 3.96
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I hope this helps! :)
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