Light manufacturers produces energy-efficient light bulbs. in one 8-hour shift, they incur the following costs to make 4,000 light bulbs: use 250 lbs. of glass for a total cost of $1,016. use 500 lbs. of coal to keep the fire going to melt and shape glass for a total cost of $1,280. use 8,000 filaments for a total cost of $1,120. use 4,800 feet of wire for a total cost of $156. use 4,000 light bulb bases for a total cost of $1,480. use 128 man-hours for a total cost of $2,500. what are the direct material costs for making one light bulb?
a) $0.943.
b) $0.904.
c) $1.224.
d) $1.263.

The correct option is D) $1.263.

Step-by-step explanation:

Consider the provided information.

Direct materials is  a product cost.

First calculate the direct material cost as shown:

Direct material cost = Glass cost + Shape glass cost + Filament cost + Wire cost + Bulb bases cost

Direct material cost = $1,016+$1,280+$1,120+$156+$2,500

Direct material cost = $5,052

Now we need to find the direct material costs for making one light bulb.

Since they are making 4,000 light bulbs so divide the Direct material cost with the number of bulbs gives the direct material cost of one bulb.

Direct material costs of one light bulb =

Hence, the correct option is D) $1.263.

what i would say the best answer is a. 40.5

a.   we have two

lines:   y = 4-x   and  

y = 8-x^-1

given two simultaneous equations that are both to be

true, then the solution is the points where the lines cross. the intersection is

where the two equations are equal. therefore the solution that works for both

equations is when

4-x = 8-x^-1

this is where the two lines will cross and that is the

common point that satisfies both equations.

b.   4-x = 8-x^-1

  x           4-x       8-x^-1

-3           7        

8.33

-2           6         8.5

-1           5         9

  0           4        

-

  1           3        

7

  2           2        

7.5

  3           1         7.67

the table shows that none of the x values from -3 to 3 is

the solution because in no case does

4-x = 8-x^-1

to find the solution we need to rearrange the equation to

find for x:

4-x = 8-x^-1

multiply both sides with x:

4x-x^2 = 8x-1

x^2+4x-1=0

x= -4.236, 0.236

therefore there are two points that satisfies the

equation.

find y:  

x=-4.236

y = 4-x   = 4 – (-4.236)

= 8.236

y = 8-x^-1 =   .236)^-1

= 8.236

x=0.236

  y = 4-x   = 4 – (0.236) = 3.764

y = 8-x^-1 =   8-(0.236)^-1

= 3.764

thus the two lines cross at 2 points:

(-4.236, 8.236) & (0.236, 3.764)

c.   to solve

graphically the equation 4-x = 8-x^-1

we would graph both lines: y = 4-x   and   y

= 8-x^-1

the point on the graph where the lines cross is the

solution to the system of equations.

just graph the points on part b on a cartesian coordinate

system and extend the two lines.   the

solution is, as stated, the point where the two lines cross on the graph.

step-by-step explanation:

mark brainliest!