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ss7ja [257]
4 years ago
9

Which fraction represents the decimal 0.8888

Mathematics
2 answers:
GrogVix [38]4 years ago
8 0
<span> For this case we have the following decimal number:
 0.8888
 Since the number has 4 decimal places, then the first thing to do is multiply  and divide the number by 10000.
 We have then:
</span> 0.8888 * (10000/10000) = 8888/10000&#10;
<span> Simplifying we have:
</span> 8888/10000 = 4444/5000&#10;&#10;4444/5000 = 2222/2500&#10;&#10;2222/2500 = 1111/1250<span>
 Answer:
 A fraction that represents the decimal 0.8888 is:
 1111/1250</span>
oee [108]4 years ago
5 0

Answer:

The Answer is C 8/9 I just took the test on Ed.

Step-by-step explanation:

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at 10a.m. you consume an energy drink containing 800mg of caffeine. if the half-life of caffeine is 5.7 hours, how much caffeine
icang [17]

Answer:

268 mg

Step-by-step explanation:

Let A₀ = the original amount of caffeine

The amount remaining after one half-life is ½A₀.

After two half-lives, the amount remaining is ½ ×½A₀ = (½)²A₀.

After three half-lives, the amount remaining is ½ ×(½)²A₀ = (½)³A₀.

We can write a general formula for the amount remaining:

A =A₀(½)ⁿ

where n is the number of half-lives .

n = t/t_½

Data:

  A₀ = 800 mg

    t₁ = 10 a.m.

   t₂ = 7 p.m.  

t_½ = 5.7 h

Calculations:

(a) Calculate t

t = t₂ - t₁ = 7 p.m. - 10 a.m. = 19:00 - 10:00 = 9:00 = 9.00 h

(b) Calculate n

n = 9.00/5.7 = 1.58

(b) Calculate A

A = 800 × (½)^1.58 = 800 × 0.334 = 268 mg

You will still have 268 mg of caffeine in your body at 10 p.m.

6 0
3 years ago
A line passes through the points (6,5) and (2,2) .
Rashid [163]
First is yes
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7 0
3 years ago
Given that x equals 6 and y equals -4
aleksandr82 [10.1K]

Answer: 42/12 or 3.5

Step-by-step explanation:

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-30/12 + 6 or -30/12 + 72/12 = 42/12 or 3.5

7 0
3 years ago
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5 0
3 years ago
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Lorico [155]

since for the bank purposes, there are 360 days in a year, then 270 days is 270/360 years, or namely 3/4 years.


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4 0
4 years ago
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