Answer:
a) 10
b) 18
c) 3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given
Required
Write a formula
The above sequence shows a geometric sequence because:
-- common ratio
The equation is determined using:
Where
Substitute values for a and r
Apply law of indices:
<em>The above represents the explicit formula</em>
Answer:
The total change is £21.02 from the original amount of £78.98. Therefore, the percentage change is directly related to the original amount.
so the answer in a percentage is 15.22%.
Step-by-step explanation:
Answer:
$14.28
Step-by-step explanation:
If the CD is $17 and is have a 20% off then you multiply .20 and 17 to get the amount that is off. Subtract that answer from 17 and you should get $13.60. That is the cost of the CD WITHOUT tax. To apply the tax, you multiply the cost and 0.05 (5%) to get 0.68. 0.68 is the tax cost. To get the entire cost of the CD, you add 0.68 (tax) and price (13.60) and get $14.28.
