-6.5(n-5)=18.2
Use Distributive Property:
-6.5n + 32.5 = 18.2
Subtract 32.5 from both sides:
-6.5n = -14.3
Divide both sides by -6.5
n = -14.3 / -6.5
n = 2.2
I’m sorry but I’m confused if we ignore the answers circled then there is only one answer left but also explain what is wrong?
A "learning rate" expresses the ratio of the labor spent on the n-th item to that spent on the (n/2)-th item. That is, the 8th helicopter manufactured took days related by ...
0.8 × (days for 8th) = (days for 16th)
(days for 8th) = (days for 16th)/0.8 = 1.25×(days for 16th)
Then the days for the 4th are 1.25 times that, and the days for the 2nd are 1.25 times the days for the 4th. The days for the first helicopter will be
... 1.25⁴×106.496 days = 260 days
The appropriate choice is
... d. 260
Answer:
A) 54
Step-by-step explanation:
You know that a full triangle has to be equal to 180. This means we have to subtract 47 and 79 from 180. 180-47-79 is equal to 180-126. Simplify this to get 54.
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