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Liono4ka [1.6K]
4 years ago
11

Ashley increased the amount of water she drinks each day from 80oz to 87 oz.By what percentage did she increase her water intake

?
Mathematics
1 answer:
rewona [7]4 years ago
7 0
87oz - 80oz = 7oz
7oz/80oz = 0.0875
0.0875 x 100% = 8.75%

Ashley increased her water intake by 8.75%.
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kakasveta [241]

Answer: The required confidence interval would be (2.72,2.89)

Step-by-step explanation:

Since we have given that

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Standard deviation = 0.24 pounds

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z=1.341

So, the confidence interval will be

\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=(2.8\pm 1.341\times \dfrac{0.24}{\sqrt{16}})\\\\=(2.8\pm 1.314\times 0.06)\\\\=(2.8-0.07884,2.8+0.07884)\\\\=(2.72116,2.87884)

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4 years ago
Which equation shows a valid step in solving /2x-6+2x+6=0?
AfilCa [17]

An equation which shows a valid step that can be used to solve the given mathematical equation is (\sqrt[3]{2x - 6})^3 = (-\sqrt[3]{2x + 6})^3

<h3>What is an equation?</h3>

An equation simply refers to a mathematical expression that can be used to show the relationship existing between two (2) or more numerical quantities.

In this exercise, you're required to show a valid step which can be used to solve the given mathematical equation. Since both equations are having a cube root, the first step is to take the cube of both sides.

Take the cube of both sides, we have:

\sqrt[3]{2x - 6} + \sqrt[3]{2x + 6} = 0\\\\(\sqrt[3]{2x - 6})^3 + (\sqrt[3]{2x + 6})^3 = 0^3\\\\(\sqrt[3]{2x - 6})^3 = (-\sqrt[3]{2x + 6})^3

Read more on equations here: brainly.com/question/13170908

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5 0
2 years ago
Please Help!! If You Answer First (And It's Good) Then I'll Mark You Brainly! &lt;3
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8 0
3 years ago
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Points A,B,C and D are midpoints of the sides of the larger square. If the smaller square has area 60, what is the area of the b
kotykmax [81]

Answer:

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Step-by-step explanation:

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Slav-nsk [51]
Some rational numbers are
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