Answer:
252
Step-by-step explanation:
Of means multiply
84 % * 300
Change to decimal form
.84 * 300
252
<span>I copied your table and added one column and one line.
It is all explained below.
Item
Final Price Markdown Original Price
Chicken $8.47 15% $9.96
Milk $2.16 20% $2.70
Onions $0.89 10% $0.99
Potato chips $1.45 12% $1.65
Oranges $1.36 25% $1.81
Flour $4.39 18%</span> $5.35
Totals $18.72 $22.46
First, find each original price. To do that, change the markdown into a decimal. Then subtract it from 1. Then divide the discounted price by it. For example, for the chicken, the markdown is 15%. Change it to 0.15. Then 1 - 0.15 = 0.85. Now divide $8.47 by 0.85, and the original price is $9.96. I did that for all items and added the last column to the table above.
Now you add the discounted prices and add the original prices. I wrote them as the last line in the table above. Now you need to know what is the overall percent discount. Divide the total discounted price by the total original price.
18.72/22.46 = 0.83348 = 83.35%
The discounted price is 83.35% of the original price.
The original price is 100% of the original price.
The original price was 100% of the original price. The discounted price is 83.35% of the original price. Now subtract 100% - 18.35% = 16.65%.
The overall markdown was 16.65%
I think its 8 because 64 divided by 8 is 8.
Algebraically, that would be expressed as:
In order to answer this one, it's really really really really helpful if you know what the law of cosines says. In fact it's absolutely necessary.
The law of cosines says if you know two sides of a triangle and the angle between them then you can use that information to find the length of the third side.
In the picture you know the lengths of two sides and you know the angle between them. So you can use the law of cosines to find the length of the third sidethat. That's side AC.
