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Serggg [28]
3 years ago
9

The violin was on sale for 50% off sale price is $50 what was the original sale price

Mathematics
2 answers:
zhenek [66]3 years ago
7 0

Answer:100$

Step-by-step explanation: since the violin was 50 % off, that just means that the price it is is half of what it normally was , so you just multiple the fifty by 2 to get your answer which is that the violin cost 100$

Gelneren [198K]3 years ago
7 0

Answer:

$100

Step-by-step explanation:

The price we are given already has the discount on it, so we know that

50% × original price = $50

50% fraction wise is \frac{1}{2} or in decimal 0.5

So: 0.5 × original price = $50

original price = \frac{50}{0.5} = $100

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One of the roots of the quadratic equation 4mnx^2 – 6m^2x – 6n^2x + 9mn = 0 (m, n ≠ 0) is a)-3m/2n b)3m/2n c)2m/3n d)-2m/3n
maxonik [38]

Answer:

B.\ \frac{3m}{2n}

Step-by-step explanation:

Given

4mnx^2 - 6m^2x - 6n^2x + 9mn = 0\ (m, n \neq  0)

Required

Calculate one of the root of the equation

4mnx^2 - 6m^2x - 6n^2x + 9mn = 0

Factorize

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(2mx - 3n)(2nx - 3m) = 0

Split equation

2mx - 3n = 0\ or\ 2nx - 3m = 0

Make x the subject of formula in both expressions

2mx = 3n\ or\ 2nx = 3m

x = \frac{3n}{2m}\ or\ x = \frac{3m}{2n}

<em>From the list of given options, one of the roots of the equation is</em> \frac{3m}{2n}

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Step-by-step explanation:

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garik1379 [7]

Answer:

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