Answer:
z =0.001
Step-by-step explanation:
log z + 12 = 9
Subtract 12 from each side
log z + 12-12 = 9-12
log z = -3
Raise each side to the base of 10
10^ log z = 10 ^-3
z = 10 ^-3
z =0.001
Answer:
-1
Step-by-step explanation:
If i = √-1, then i^2 = -1.
Let x = the number of penguins we are finding
x ÷ 100 × 30 = 15
x = 15 ÷ 30 × 100
x = 50
hope this helps and have a great day :)
The original price is $199.94
Given:
Discounted price = 159.95
Discount rate = 20%
If the discount rate is 20%, then the price is equivalent to 80%.
To get the original price, simply divide the discount price by its corresponding percentage.
Original price = 159.95 ÷ 80% = 199.94
To check
199.94 * 20% = 39.99 * value of the discount
199.94 - 39.99 = 159.95 *discounted price
