Workers at a factory produce a toy with a defect about once every 4 hours on average. each toy costs the factory approximately $7 in labor and supplies.

c) what is the expected cost to the factory for toys with defects at the end of a 40-hour work week?

$70 is the expected cost.  

Step-by-step explanation:

A toy with a defect is produced once every 4 hours on average. To calculate the total of toys with a defect at the end of a 40-hour work week, you must follow the next steps:

1. Divide the total of hours of the work week by the time average of a toy with a defect is produced in the factory:

This means 10 toys with a defect are produced on average in a 40-hour work week.  

2. Now that you calculated the number of toys with a defect, multiply it by the cost to the factory to produce one defected toy which is 7$:

To conclude, $70 is the expected cost to the factory for toys with defects at the end of a 40-hour work week, having in mind that the factory produces a toy with a defect about once every 4 hours on average.  

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl