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densk [106]
3 years ago
5

a store manager can organize 4/5 of a display shelf in 1 1/2 hours. how much of the shelf can she organize in 1 hour? reduce fra

ction

Mathematics
1 answer:
aniked [119]3 years ago
8 0
Can u help me solve this

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The number 21 is what percent of 75​
lesantik [10]

Answer:

28 percent

Step-by-step explanation:

To find what percentage of a number another number is, you can basically just divide it, 21/75 then you can multiply it by 100, so 21/75=0.28, and then 0.28*100=28, 21 is 28 percent of 75

5 0
3 years ago
In a 24 marathon, solve the 24 puzzle given by the poster above you, and post a new 24 puzzle of your own!
Black_prince [1.1K]
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7 0
1 year ago
Read 2 more answers
(06.01)
MAVERICK [17]

After solving I have come up with 6 2/9 or 6.22222.

4 0
3 years ago
Algebra need some assistance
d1i1m1o1n [39]
X=0,2,3/8
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5 0
2 years ago
Dubnium-262 has a half-life of 34 s. How long will it take for 500.0 grams to
dmitriy555 [2]

Answer:

the time taken for the radioactive element to decay to 1 g is 304.8 s.

Step-by-step explanation:

Given;

half-life of the given Dubnium = 34 s

initial mass of the given Dubnium, m₀ = 500 grams

final mass of the element, mf = 1 g

The time taken for the radioactive element to decay to its final mass is calculated as follows;

1 = 500 (0.5)^{\frac{t}{34}} \\\\\frac{1}{500} =  (0.5)^{\frac{t}{34}}\\\\log(\frac{1}{500}) = log [(0.5)^{\frac{t}{34}}]\\\\log(\frac{1}{500})  = \frac{t}{34} log(0.5)\\\\-2.699 = \frac{t}{34} (-0.301)\\\\t = \frac{2.699 \times 34}{0.301} \\\\t = 304.8 \ s

Therefore, the time taken for the radioactive element to decay to 1 g is 304.8 s.

4 0
2 years ago
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