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3 years ago

$65 dress pants 20% discount

Mathematics

2 answers:

jeka57 [31]3 years ago

8 0

20% of 65 = 65 * 1/5, which is 13. so 20% of 65 is $13. so a discount of 20% = 65-13 which is $52

solong [7]3 years ago

6 0

Answer:

Step-by-step explanation:

65 dollar is price so it has 20 percent discount so,

65× 20% = 13

so,

65- 13

52 dollars

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3 years ago

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3 years ago

For Tran Please help is appreciate it

Ostrovityanka [42]

Answer:

A = 38°

Step-by-step explanation:

We are going to use cosine law to find angle A where

a = 4.7

b = 3.9 m

c = 2.9 m

${c}^{2} = {a}^{2} + {b}^{2} - 2ab \cos( \alpha )$

$\cos( \alpha ) = \frac{ {a}^{2} + {b}^{2} - {c}^{2} }{2ab}$

cos A = [(4.7)^2 + (3.9)^2 - (2.9)^2]/2(4.7)(3.9)

= 28.89/36.66

= 0.788

A = arccos(0.788) = 38°

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3 years ago