If a student is chosen at random what is the probability they scored a 4 or 5
2 answers:
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Answer:
- Initial amount of the material is 67 kg
- Hal-life is 83 hours
<u>The required equation is:</u>
- m(x) = 67 *
, where m- remaining amount of the radioactive material, x - number of hours
<u>After 5 hours the material remains:</u>
- m(5) = 67 *
= 64.260 (rounded)
Given :
Arleen has a gift card for a local lawn and garden store. She uses the gift card to . It costs $48 per day to rent the tiller. She also buys a rake for $5.
To Find :
The value on her gift card decreased by how many dollars.
Solution :
Decrease in dollar is given by :
Therefore, the value on her gift card decreased by 149 dollars.
Hence, this is the required solution.