Answer:
Just for the reason that, you do not have any further doubt on this.
If you have studied Permutations & Combinations or Combinatorics, you will know, actually, the 1st, 2nd and 3rd places can be selected in 7P3 or (73)×3!. Here, what we are doing is, we are finding the number of ways of choosing 3 elements from the 7 given elements to be our 1st, 2nd and 3rd place holders and since the order matters here, i.e., how the 3 chosen elements are arranged to be 1st, 2nd and 3rd matters here, we multiply it by 3!.
I belieeeeve the first one is 35 and the second one is success??
Answer:
$760
Step-by-step explanation:
First off we need to define the amount of feet per square yard.
(3feet= 1yard)
(9 squarefeet = 1 square yard)
Now we find the total area of Amanda's living room.
12 x 15 = 180 sq feet
Now that we have the total area of Amanda's living room, we then divide the total to the number of square feet in a square yard.
180 / 9 = 20 square yards.
Amanda will need a total of 20 square yards to carpet her living room. Now we simply multiply the amount of each square yard to the total amount of square yards that Amanda needs.
38 x 20 = $760
The total price with sales tax is $ 246.1
<h3><u>Solution:</u></h3>
Cost of cellphone = $ 210
Cost of battery charger = $ 15
Cost of batteries = $ 5
So total cost can be calculated by adding cost of cellphone and Cost of battery charger and Cost of batteries
Total cost = 210 + 15 + 5 = $ 230
Given that sales tax is 7%
sales tax = 7% of total cost
sales tax = 7 % of 230
Total cost including sales tax = 230 + 16.1 = $ 246.1
Thus the total price with sales tax is $ 246.1
