1. Find the area of the two sides (length x height) x 2 sides
2. Find the area of the adjacent sides (width x height) x 2 sides
3. Find the area of ends (length x width) x 2 ends
4. add the three areas together to find the surface area
$65 total ÷ $5 a month = 13 months total
John borrowed money from his mom for 13 months.
7% of 18 = (7/100)*18 = 0.07*18 = 1.26
The amount of sales tax to be paid is $1.26
Add this onto the original amount of $18 to get 18+1.26 = 19.26
So she will have enough money (since 19.26 is smaller than 20). The amount of change Torri will get is 74 cents (20-19.26 = 0.74 dollars = 74 cents)
Answer:
20cos(39) or 15.543 (3 d.p.)
Step-by-step explanation:
- Use SOHCAHTOA
- You want to find A and have an angle of 36° and H
- So use CAH
- cos(39) = x / 20
- x = 20cos(39)