a florist buys roses at $18 per dozen. if she sells them at $1.20 each, express her loss as a percentage of her selling price
The percentage of her loss from her selling price is 20%.
In mathematics, a percentage or percent is a number or ratio to express a fraction of one hundred. Percentages are often indicated by the symbol "%". Percentages are also used even if not in the hundreds. The numbers are then scaled to be compared to one hundred.
Percentages are very useful because people can compare things that are not the same number. At the end of the 15th century percentages were commonly used in various reports such as income statements, interest rates, sales, and others.
Focusing on the problem, we will calculate the loss percentage from the purchase price of an item. Then, we need to determine the total loss nominal, then compare with the selling price and declare the loss as a percentage.
For more details, see the discussion of the following problems.
PEMBAHASAN :
A florist buys roses at $18 per dozen.
A dozen contains a group of twelve. It means the florist actually buys each rose at $18 ÷ 12 = $1.50.
If she sells them at $1.20 each, we can count her loss by subtracting buying (purchasing) price and selling price.
For each rose, her loss is $1.50 – $1.20 = $0.3 and it will be 12 × $0.3 = $3.60 per dozen.
So, the percentage of her loss from her selling price is : $3.60 / $18 × 100%
= 20%
Pelajari lebih lanjut :
Tentang soal – soal sejenisnya (persentase keuntungan dan kerugian)
DETAIL JAWABAN
MAPEL : MATEMATIKA
KELAS : VII
MATERI : ARITMATIKA SOSIAL
KODE SOAL : 2
KODE KATEGORISASI : 7.2.5