Answer:
about 5.84 mg
Step-by-step explanation:
The amount remaining after t days can be written as ...
remaining = initialAmount · (1/2)^(t/(halfLife))
Filling in the given numbers, you have
remaining = (40 mg)·(1/2)^(180/64.84) ≈ 5.84 mg
About 5.84 mg would be left after 180 days.
Answer:
12% loss
Step-by-step explanation:
The selling price is the sum of the cost price and the markup. Here, the markup (profit) is expressed as a percentage of the cost price.
<h3>Cost price</h3>
The relation between selling price and cost price is ...
selling price = cost price + cost price × markup fraction
selling price = cost price × (1 + markup fraction)
Then the original cost price is ...
cost price = (selling price) / (1 + markup fraction)
cost price = #1.35 / (1 +8%) = #1.25
<h3>Profit</h3>
After the change in selling price, we can find the markup fraction (profit rate) to be ...
1 + markup fraction = (selling price)/(cost price)
markup fraction = (selling price)/(cost price) -1
markup fraction = #1.10/1.25 -1 = 0.88 -1 = -0.12
The trader has a 12% loss when selling the oranges at #1.10.
Answer:
were you supposed to attach a photo because I cant see it? All I can tell you 3+(-7)= -4
Step-by-step explanation:
