Answer:
Percentage increase = 269%
Step-by-step explanation:
Price of a DVD last week = $2.87
Price of the same DVD this week = $10.59
Increase in the price of DVD between last week and this week = 10.59 - 2.87
= $7.72
Therefore, percentage increase in the price of DVD = ![\frac{\text{Increase in the price}}{\text{Price of DVD last week}}\times 100](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7BIncrease%20in%20the%20price%7D%7D%7B%5Ctext%7BPrice%20of%20DVD%20last%20week%7D%7D%5Ctimes%20100)
= ![\frac{7.72}{2.87}\times 100](https://tex.z-dn.net/?f=%5Cfrac%7B7.72%7D%7B2.87%7D%5Ctimes%20100)
= 268.99
= 269%
Since decimals have places in 10 100 and 1000 you need a denominator with those number but since you already have a 10 you take the 7 and add a 0. in front so the answer is 0.7
Answer:
20 + 0i
Step-by-step explanation:
(10 + 5i) + (10 - 5i) = 20 + 0i
Step-by-step explanation:
i think its
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