Answer:
$420
Step-by-step explanation:
To work this out you would need to find the 25% decrease of 560. To do this you would first divide 25 by 100, which gives you 0.25. Then you would minus 0.25 from 1, which gives you 0.75. This is because when finding percentage decreases you would first have to convert it into a decimal. Then you would have to minus it from 1 , to make sure that it will be a 25% decrease not a 75% decrease. Then you would multiply 560 by 0.75, which gives you 420.
1) Divide 25 by 100.
2) Minus 0.25 from 1.
3) Multiply 560 by 0.75.
After 24 hours, 35.4% of the initial dosage remains on the body.
<h3>What percentage of the last dosage remains?</h3>
The exponential decay is written as:
Where A is the initial value, in this case 2.8mg.
k is the constant of decay, given by the logarithm of 2 over the half life, in this case, is:
Replacing all that in the above formula, and evaluating in x = 24 hours we get:
The percentage of the initial dosage that remains is:
If you want to learn more about exponential decays:
brainly.com/question/11464095
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Answer:
do your working
Step-by-step explanation: 356 X 366
The shortest side on the map is 8 cm. This IN real-life distances is 99 km. To find the ratio, we need to change 99 km to cm.
This is a ratio of
Now that we have the ratio, we can find the longest side of the triangle.
The longest side of the triangle is 15 cm.
In km, this is
The longest side of the real-life triangle is 185.625 km, or 185 5/8 km
