A guitar is on sale for 20% off the original price. Let p represent the original price. What expressions can be used to calculat
2 answers:
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Answer:
D is the right one
Step-by-step explanation:
π radian = 180 degree
-> 135 degree = π radian
-> 135 degree = 0.75 * π radians = 3π/4 radian
Given parameters:
Cost price of the article = Nu.28.30
Selling price of the article = Nu.29.30
Unknown:
Gain percentage = ?
The gain percentage is the same as the percentage profit on a trade.
The formula is given as:
Gain percentage =
Profit = Selling price - Cost price
= Nu.29.30 - Nu.28.30
= Nu. 1
Now input the parameters and solve;
Gain percentage =
= 3.5%
The gain percent is 3.5%
Answer:
Step-by-step explanation:
To write this equation with h isolated, we cancel everything else on the right hand side of the equals sign. This means we cancel π and r².
Since both of these are attached to h by multiplication, we divide by both to cancel. We can divide by both at the same time: