Question

The owner of a clothing store buys leather jackets at a wholesale cost, then sells them to the
public at a higher retail price. She determines the retail price of one jacket by tripling the
wholesale cost and adding 10% of the wholesale cost. Which equation could be used to
calculate r, the retail price of a jacket, based on w, the wholesale price of the jacket?

Answer 1

If the wholesale price is w, then tripling w is three times w, or 3w.
10% of the wholesale price is added. That is 10% of w. In math, usually "of" means "times" or multiplication. So 10% of the wholesale price means 10% of w or 10% x w. Since 10% = 0.1, 10% x w = 0.1w. This must be added to the 3w we got above. Can you write the equation now?

Answer 2

no

Answer 3

i dont know

Answer 4

r is retail price and it's three times wholesale plus 10% of wholesale
3 times wholesale is 3w
10% of wholesale is 10%w = 0.1w
r = 3w + 0.1w
r = 3.1w
That's the expression you need.
So if you take the wholesale price of a jacket and insert it into w, then you multiply it by 3.1, you get the retail price.

Answer 5

so whats the answer?

Answer 6

r = 3.1w is the answer