<span>To calculate the change in CPI we need to do a % change formula. (New - Old) / (Old) = n. (121 - 110) / 110 = .10. This is equal to a 10% change in CPI.
To confirm the answer, do, (Old) * (1+n) = New CPI. 110*(1+.10) = 121. It equals so it is right!</span>
The amount of cooper that are contained in 120 pounds of the brass is equal to 78 pounds.
- Let the amount of copper be C.
<u>Given the following data:</u>
- Quantity of brass = 120 pounds
- Percentage of copper = 65%
To calculate the amount of cooper that are contained in 120 pounds of the brass:
In this this exercise, you're required to determined how many pounds of copper can be found in 120 pounds of the brass. Thus, we would solve for the percentage of copper contained in this type of brass.
Copper, C = 78 pounds
Read more: brainly.com/question/16068904
(x-6) + (5+x) = 9x - 6 + 5 + x = 9
2x - 6 + 5 = 92x - 1 = 9
2x = 10x = 5
<h3>
Answer:</h3>
6 hours 36 minutes, or 6 hours 31 1/2 minutes
<h3>
Step-by-step explanation:</h3>
Dividing the task among the 6 committee members means each member will be making 525/6 = 87.5, that is, either 87 or 88 flowers. (We doubt that two people working together on the same flower will finish it in half the time.)
Each of the three committee members making 88 flowers will take ...
... 88 × 4 1/2 minutes = 396 minutes = 6 hours 36 minutes
Each member making 87 flowers will be finished 4 1/2 minutes sooner, after 6 hours 31 1/2 minutes.
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<em>Comment on the problem</em>
This problem seemingly invites you to divide the labor evenly among committe members. Doing that would give you an answer of 6 hours 33 3/4 minutes. You need to ask yourself whether that is practical for this situation.
