Donna read 18 out of 30 pages in her book. what percent of the book did she read?

Mathematics

2 answers:

jek_recluse [69]3 years ago

7 0

Answer:

60%

Step-by-step explanation:

1.Divide 18 and 30 by 3

6 and 10

2. Multiply each number by 10

60 and 100

3.Put it as a fraction

=0.6=60%

Hope this helped! :)

wariber [46]3 years ago

6 0

Answer:

60 percent

Step-by-step explanation:

because

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Answer: Choice D) $y = \pm \sqrt{x+5}$

The steps to finding the inverse will have us swap x and y. Afterward, we solve for y

$y = x^2 - 5 \\\\x = y^2 - 5 \\\\x+5 = y^2 \\\\y^2 = x+5 \\\\y = \pm \sqrt{x+5} \\\\$

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Extra info:

The inverse relation is not a function because of the plus minus. For instance, plugging x = 4 into $y = \pm \sqrt{x+5}$ leads to y = -3 and y = 3 simultaneously. You would have to apply a domain restriction on $y = x^2-5$ to make it a one-to-one function, to make the inverse a function. One possible domain restriction is $x > 0$ which would lead to the inverse function $y = \sqrt{x+5}$