A system of equations is shown. 3x+y=20

2x−2y=8

What is the value of x+y for the system of equations?

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org