Use the formula (new price-old price) / old price
32-40=-8
-8/40=-20%
the percent difference is 20%
the negative means it was a markdown
Answer:
8p + 24 dollars
Step-by-step explanation:
1 hour = (p+3)
8 hours = 8 (p+3)
=> 8p + 24
In 8 hours, Cheryl earns 8p + 24 dollars.
Answer:
60
Step-by-step explanation:
percentage=18
rate=30%
base=_____
p/r=b
18/0.30=60
Answer:
2
Step-by-step explanation:
Add 1 to isolate, Don't forget to add 1 to the 3. (2y)=4, now Divide 2 from each side. y=2
- Product Rule of Radicals: √ab = √a × √b
So firstly, factor out i (i = √-1):
10i√80
Next, apply the product rule of radicals and simplify the radical as such:
√80 = √10 × √8 = √5 × √2 × √4 × √2 = 2 × 2 × √5 = 4√5
10i × 4√5 = 40i√5
<u>Your final answer is 40i√5.</u>