PLEASE HELP TIMED Suppose that x mL of 40% acid are added to 100mL of 50% acid.
(a) Express the concentration C9c) of the new mixture as a function of x.
(b) How much 40% acid should be added to 100 mL of 50% acid to obtain a mixture that is 48% acid?

Alawn mower manufacturer incurs a total of 34,816 in overhead costs and 388 per lawn mower in production costs. how many lawn mowers were manufactured if the average cost of productions is 660

Find the balance at the end of 4 years if 1000 is deposited at the rate of

Abiologist is recording the loss of fish in a pond. he notes the number of fish, f, in the pond on june 1. on july 1 there were 63 fish in the pond, which is 52 fewer fish than were in the pond on june 1. which equation represents this situation? a. f – 52 = 63 b. f – 63 = 52 c. 63 – f = 52 d. f – 63 = –52