Precalculus
posted by Lucy .
Find the slope of the line passing through the points at (a, a+3) and (4a, a5).
2) Together, two printers can print 7500 lines if the first printer prints for 2 minutes and the second prints for 1 minute. If the first printer prints for 1 minute and the second prints for 2 minutes, they can print 9000 lines together. Find the number of lines per minute that each printer prints.

1) Slope = (y2 y1)/(x2  x1) = 8/(3a)
The answer will depend upon a.
2. Lines printed = S1*t1 + S2*t2
S1 is the speed of printer 1 and t1 is the printing time of printer 1, etc.
7500 = 2 S1 + S2
9000 = S1 + 2 S2
Continue the solution
Respond to this Question
Similar Questions

Precalculus
Find the slope of the line passing through the points at (a, a+3) and (4a, a5). 2) Together, two printers can print 7500 lines if the first printer prints for 2 minutes and the second prints for 1 minute. If the first printer prints … 
Precalculus with applications
Together, two printers can print 7500 lines if the first printer prints for 2 minutes and the second prints for 1 minute. If the first printer prints for 1 minute and the second prints for 2 minutes, they can print 9000 lines together. … 
Pre Cal.
Together, two printers can print 7500 lines if the first printer prints for 2 minutes and the second prints for 1 minute. If the first printer prints for 1 minutes and the second prints for 2 minutes, they can print 9000 lines together. … 
algerbra 2
if a jet printer prints an articlae in 12 minutes and a laser printer prints the same in 29 minutes if they work together how many minutes 
Math
Can you please check my answers, thank you #2. 5/y+4 + 11/y^2=y12 = 7/y3 Answer 2 #4 The length of a rectangle is 2 cm more than twice its width. If the perimeter of the rectangle is 40 cm, find the length of the rectangle. A. 6 … 
Algebra
A company has two printers. Printer A prints a pages per minute, and Printer B prints b pages per minute. When Printer A prints for 3 minutes and Printer B prints 5 minutes, a total of 70 pages are printed. When Printer A prints for … 
Reading
41. Choosing the Resolution for Your Photos Resolution Purpose L (Large) 2592x1944 pixels Print larger that A 4 size prints (8.3 x 11.7 in.) Print larger than letter size prints (8.5 x 11 in.) M1 (Medium 1) 2048 x 1536 Print up to … 
English
41. Choosing the Resolution for Your Photos Resolution Purpose L (Large) 2592x1944 pixels Print larger that A 4 size prints (8.3 x 11.7 in.) Print larger than letter size prints (8.5 x 11 in.) M1 (Medium 1) 2048 x 1536 Print up to … 
math
ART An artist is going to sell two sizes of prints at an art fair. The artist will change $20 for a small print and $45 for a large print. The artist would like to sell twice ad many small prints as large prints. The booth the artist … 
Math
Printer A prints 50 cards per minute while Printer B prints 40 cards per minute.How long will it take both printer working simultaneously to print 1350 cards together?