Answer: 0.77
Step-by-step explanation:
Answer:
40%
Step-by-step explanation:
The profit margin is given by the gross profit divided by total sales.
In this case, Gadget mania has a gross profit of $6 per microphone, while each microphone sells for $15.
Therefore, the profit margin is:
Gadget Mania's profit margin is 40%.
Answer:
8th grade!
Step-by-step explanation:
The rate of Sue is 1 car per hour: 1 (c/h)
then the rate of Steve is 2 (c/h) , because Steve works faster, he can wash twice the number of cars, for the same amount of time.
Thus If Steve and Sue work together, they can wash 1 + 2 = 3
(cars per hour).
That is, the rate of Steve and Sue working together, is 3 (c/h).
In the first 30 minutes, Sue washes half of the car.
The remaining half will be washed at a rate of 3 (c/h)
The main formula is Work = Time * Rate
where Work is washing (1/2)c, and rate is 3(c/h)
Time=Work/Rate =
1/ 6 h =(1/6)*60 min = 10 min
Answer: 10 min
Answer:
<em>d)</em> times
Step-by-step explanation:
<u>Scientific Notation</u>
We are given two quantities and we must find the ratio between them and use scientific notation.
The diameter of a pearl is about
Converting to meters, we divide by 100
The diameter of an atom is about
The ratio between both diameters is:
Answer: d) times