Adormitory manager buys 38 bed sheets and 61 towels for $791.50. the manager get another 54 bed sheets and 50 towels for $923 from the same store. what is the cost of one bed sheet and one towel?

a.) $15 and $10
b.) $13.50 and $7.50
c.) $12 and $5.50
d.) $10.50 and $3

Option: C is the correct answer.

                   C.) $12 and $5.50

Let the cost of one bed sheet is: $ x

and cost of one towel is:  $ y

Now, it is given that:

             i.e. the equation is written as:

                     38x+61y=791.50

                              i.e. the equation is written as:

                        54x+50y=923

Now, in order to find the value of x and y we graph the system of equation and see the point of intersection of the graph to get the required value.

Hence, we see that the two lines intersect at (12,5.5)

Hence, cost of 1 bed sheet= $ 12

and cost of 1 towel= $ 5.50

829 feet per second is your answer. You do this by doing 9,944in/s x ft./12in. Cancel out the in., and multiply to get 9,944ft in 12 seconds. Divide 9,944 by 12 to get around 828.6 ft., and then then round it up to get 829 ft. per second.