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3 years ago

George spent 70 % of his saving to buy a camera. The camera cost $574 . How much did he originally have in savings?

Mathematics

1 answer:

viva [34]3 years ago

5 0

574 : 70 * 100 =
820 $

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Find the solutions to 6x^2- 54x = 0

Nina [5.8K]

Answer:

A. x = 9

D. x = 0

Step-by-step explanation:

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$6x^{2} -54x=0$

$a=6\\b=-54\\c=0$

substitute in the formula

$x=\frac{-(-54)(+/-)\sqrt{-54^{2}-4(6)(0)}} {2(6)}$

$x=\frac{54(+/-)54} {12}$

$x=\frac{54(+)54} {12}=9$

$x=\frac{54(-)54} {12}=0$

therefore

The solutions are x=0 and x=9

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Abby is surveying people in the city about their interest in a new shopping mall. She found that 180 people, or 37.5% of those s

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