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3 years ago

What is 25 percent of 78 dollars

2 answers:

s2008m [1.1K]3 years ago

6 0

All you have to do is take the percent and multiply it my 78.
When ever you see of this means to multiply so now all you have to do is multiply and if u do this correctly you will find out quickly that 25% x $78 that it will equal $19.5

zavuch27 [327]3 years ago

5 0

$19.50 (U.S. dollars)

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Answer:

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y = StartFraction 3 + 6 StartRoot 2 EndRoot Over 4 EndFraction and y = StartFraction 3 minus 6 StartRoot 2 EndRoot Over 4 EndFraction

Step-by-step explanation:

The given quadratic equation is (4y - 3)² = 72

We have to solve this equation for y.

Now, 4y - 3 = ± 6√2

⇒ 4y = 3 ± 6√2

⇒ $y = \frac{3 + 6\sqrt{2} }{4}$ and $y = \frac{3 - 6\sqrt{2} }{4}$

Therefore, the solution is y = StartFraction 3 + 6 StartRoot 2 EndRoot Over 4 EndFraction and y = StartFraction 3 minus 6 StartRoot 2 EndRoot Over 4 EndFraction (Answer)

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