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Savatey [412]
3 years ago
10

A store offers 30% off all items. If x is the original purchase price, select all of the expressions which represent the final p

rice with the discount.
a 0.7x
b x
c x + 0.3x
d x - 0.3x
e 12x
Mathematics
2 answers:
Blizzard [7]3 years ago
7 0

Answer:

D c

Step-by-step explanation:

kvv77 [185]3 years ago
6 0

Answer:

D

Step-by-step explanation:

not really an explanation

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Answer:

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Angle 3 =  120°

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Angle 5 =  144°

Step-by-step explanation:

We need to find the measures of the interior  angles in a pentagon if the measure  of each consecutive angle is in the  ratio 9:6:10:8:12.

Let x be the common ratio

So, we can write:

Angle 1 = 9x

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We know that the <em>sum of all angles of pentagon = 540</em>

So, adding all angles and equal them to 540, we can find value of x

9x+6x+10x+8x+12x=540\\45x=540\\x=\frac{540}{45}\\x=12

So, we get the value of x: x=12

Now, calculating the angles by putting x=12:

Angle 1 = 9x = 9(12) = 108°

Angle 2 = 6x = 6(12) = 72°

Angle 3 = 10x = 10(12) = 120°

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Angle 5 = 12x= 12(12) = 144°

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