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3 years ago

12

To avoid dehydration, a person should drink 8 ounces of water for every 15 minutes of exercise. How much water should Hahn drink

if he bikes for 135 minutes? You MUST show the proportion and your work.

1 answer:

Lostsunrise [7]3 years ago

7 0

Answer:

72

Step-by-step explanation:

1. Proportion:

8/15=x/135

2. Answer is 72

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If 2.5 mol of dust particles were laid end to end along the equator, how many times would they encircle the planet? The circumfe

Natalka [10]

Answer:

They encircle the planet $3.76\times 10^{11}$ times.

Step-by-step explanation:

Consider the provided information.

We have 2.5 mole of dust particles and the Avogadro's number is $6.022\times 10^{23}$

Thus, the number of dust particles is:

$2.5\times 6.022\times 10^{23}=15.055\times 10^{23}$

Diameter of a dust particles is 10μm and the circumference of earth is 40,076 km.

Convert the measurement in meters.

Diameter: $10\mu m\times \frac{10^{-6}m}{\mu m} =10^{-5}m$

If we line up the particles the distance they could cover is:

$15.055\times 10^{23}\times 10^{-5}=15.055\times 10^{18}=1.5055\times 10^{19}$

Circumference in meters:

$40,076km\times \frac{1000m}{1km}=40,076,000 m$

Therefore,

$\frac{1.5055\times 10^{19}}{40,076,000} = 3.76\times 10^{11}$

Hence, they encircle the planet $3.76\times 10^{11}$ times.

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3 years ago

I need to know what 4,000+200+60 for my iready please

Stella [2.4K]

The answer is 4260, you can do 200 plus 60, then add to 4000

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2 years ago

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What is the domain of the function 1x)= 2

Gnesinka [82]

Answer:

According to me, the answer is

Step-by-step explanation:

all real numbers

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3 years ago

The function f(x) varies directly with x and f(x)=12 when x=8

malfutka [58]

F(x) = kx
12 = 8k
k = 12/8 = 3/2

Required equation is f(x) = 3/2 x

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Answer:

The description according to the framework in question is illustrated in the portion below.

Step-by-step explanation:

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