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2 years ago

10

Over the last week,the daily low temperatures in degrees Fahrenheit have been -4,6.2,18 1/2,-5.9,21,-1/4,1.75.List these numbers

in order from least to greatest

1 answer:

Anit [1.1K]2 years ago

8 0

-5.9, -4.6, -1/4, 1/2, 1.75, 2, 18, 21.

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8.46 If 100 is decreased by a% and the result is decreased by b%, then what is the total percent decrease (in terms of a and b)?

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Step-by-step explanation:

We are given with a word problem
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We can do this in two steps

Step 1: Finding the two percentage decrease

Step 2: Finding their difference

Step 1 of 2

Let the decrease by a% be 100-a

Then b% decrease is

$\begin{aligned}\frac{b}{100} \times(100-a) &=\frac{100 b-a b}{100} \\\frac{100 b}{100}-\frac{a b}{100} &=b-\frac{a b}{100}\end{aligned}$

Step 2 of 2

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Since 100 is the total percent $a+b-\frac{a b}{100}$ is the percentage decrease.

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1 year ago