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blondinia [14]
3 years ago
7

What's the value of x?​

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
7 0

Step-by-step explanation:

90 - 60 = 30

30 - 18 = 12

X=12

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4 years ago
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If f(x)=2x and g(x) = x+5 then (fg)(x)=
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(fg)(x)= 2x^2+10x

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5 0
3 years ago
A music player was marked down by 1/4 of the original price.
shepuryov [24]

Answer:

Step-by-step explanation:

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==============================

I hope I am understanding this one correctly...

let x = price the store paid

x + 1/2x = 170.67

2/2x + 1/2x = 170.67

3/2x = 170.67

x = 170.67 / (3/2)

x = 170.67 * 2/3

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x = 113.78 <=== what the store paid

===========================

the difference between the discount price..I am assuming this is the $ 128 from part A.....and what the store paid....113.78...from part B..

128 - 113.78 = $ 14.22 <==

I am not completely sure about B and C......B confused me.....and if B is wrong, so is C.

6 0
3 years ago
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