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2 years ago

Solve for x triangle

Mathematics

1 answer:

attashe74 [19]2 years ago

4 0

Answer:

x=65

Step-by-step explanation:

solve for the angle not marked⇒ 180-147=33

add known angles⇒ 33+82= 115

subtract total known value from 180**⇒ 180-115=65

**all interior angles of a triangle must add up to 180°

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kumpel [21]

Answer:

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Step-by-step explanation:

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A customer works into a post office to purchase stamps. she purchases a total of 45 stamps. some of the stamps are 49cent stamps

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Step-by-step explanation:Let number of 49 cents =A

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A+B=45 equation 1

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Add equation 1 and equation 2

since these are simultaneous equations

.49A+.33B=17.89

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so divide equation 2 by 100 we get

49A+33B=1789

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33A+33B=1485 equation 3

so subtract equation 3 from equation 2 we get

49A+33B=1789 equation 2

33A+33B=1485 equation 3

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16A=304

A=304/16

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putting nalue of A in equation 1 we get

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19+B=45

B=45-19

B=26

so number of 49 cent stamps are 19

and number of 33 cent stamps are 26

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