Answer:
Percentage loss of the number of trees is .
Step-by-step explanation:
Given: After a storm, trees out of
were left standing.
To find: What is the percentage loss of the number of trees?
Solution:
We have,
Total number of trees
Number of trees left standing
Therefore, loss of trees
We now that
Hence, the percentage loss of the number of trees is .
Answer:
The final price is $66.
Step-by-step explanation:
This question can be solved by a rule of three.
The initial price was of $120.
Initially, there was a discount of 15%. Then, there is another discount on the initial price. So the total discount is of 15+30 = 45%.
So the final price will be 100-45 = 55% = 0.55 of the initial price.
So
$120 - 1
x - 0.55
The final price is $66.
