Do a proportion
10/75= 1/x
Cross multiply and divide
75 x 1= 75
75 divided by 10 is 7.5
Answer is 7.5 pencils per dollar
Answer:
336.49
Step-by-step explanation:
Multiply 87.4 times 3.85 to find your answer.
Answer:
1 and 5/6
Step-by-step explanation:
Answer:
260 machines for minimum cost.
Step-by-step explanation:
c(x) = 0.3x^2 - 156x + 26.657
Finding the derivative:
c'(x) = 0.6x - 156
0.6x - 156 = 0 for maxm/minm cost.
x = 156 / 0.6
= 260
The second derivative is positive (0.6) so this is a minimum.
For this case we have the following equation:
y = 5.50 + 1.91x
Where:
x: dexterity scores
y: productivity scores
For x = 33 we have:
y = 5.50 + 1.91 * (33)
y = 68.53
Answer:
The best predicted productivity score for a person whose dexterity score is 33 is:
y = 68.53
