1)Find the number of sales necessary to break even for the cost C of x units and the revenue R obtained by selling x units if C=1000x+75000 and R=1250x.
*i think you take C & R and set them equal to eachother and solve like you would when looking for points of intersections of lines...
2)A business had annual sales of $110,000 in 1992 and $224,000 in 1995. Assuming that the annual increase in sales followed by a linear pattern, what were the sales in 1994?
*i have absolutely no clue how to do this one... but i'm pretty sure its a rate of change problem..
3) A business had annual retail sales of $124,000 in 1992 and $211,000 in 1995. Assuming that the annual increase in sales follows a linear pattern:
a) calculate the average rate of change of the sales per year.
b) write a linear equation giving sales S in terms of the year t where t=0 corresponds to 1992.
c) use the linear equation to predict retail sales in 2000.
if you can help walk me through these, showing the steps, that'd be great... they're extra pratice... things that i'm having a hard time understanding...
thanks
*i think you take C & R and set them equal to eachother and solve like you would when looking for points of intersections of lines...
2)A business had annual sales of $110,000 in 1992 and $224,000 in 1995. Assuming that the annual increase in sales followed by a linear pattern, what were the sales in 1994?
*i have absolutely no clue how to do this one... but i'm pretty sure its a rate of change problem..
3) A business had annual retail sales of $124,000 in 1992 and $211,000 in 1995. Assuming that the annual increase in sales follows a linear pattern:
a) calculate the average rate of change of the sales per year.
b) write a linear equation giving sales S in terms of the year t where t=0 corresponds to 1992.
c) use the linear equation to predict retail sales in 2000.
if you can help walk me through these, showing the steps, that'd be great... they're extra pratice... things that i'm having a hard time understanding...
thanks