Answer:
Use Math-way or photo-math
Step-by-step explanation:
Use Math-way or photo-math
Your problem is too spaced out too understand! Next time make sure he spacing is more understandable and readable! sorry
Given:
2 walls - 14ft by 9ft
2 walls - 20ft by 9ft
Wall 1 & 2 = 14ft * 9ft = 126 ft² x 2 = 252 ft²
Wall 3 & 4 = 20ft * 9ft = 180 ft² x 2 = 360 ft²
Total area = 252 ft² + 360 ft² = 612 ft²
Cost of 1 single roll: $20
612 ft² ÷ 18 ft² = 34 rolls * $20 = $680
Cost of double roll: $40
612 ft² ÷ 54 ft² = 11.33 rolls ⇒ 12 double rolls
12 * $40 = $480
If Christopher opts for 1 single roll of wallpaper, he'll spend $680.
If he opts for double roll of wallpaper, he'll spend $480.
Double roll of wallpaper is the cheaper option. He'll save $200 if he'll buy the double roll of wallpaper.
(1) Outcomes
(2) Permutation
(3) Tree Diagram
(4) Counting Principle
(5) Combination
(6) Factorial
(7) Addition Principle of Counting
(8) Multiplication Principle of Counting
<em>Hope this helps</em>
<em>-Amelia The Unknown</em>
Answer:
36
Step-by-step explanation:
a1 = 4
an=an-1 *3
a2 = a1 *3 = 4*3 = 12
a3 = a2*3 = 12*3 = 36
