Horatio is solving the equation -3/4+2/5x=7/20x-1/2 Which equations represent possible ways to begin solving for x? Check all that apply. A. Two-fifths x = StartFraction 7 Over 20 EndFraction x + one-fourth

B. Two-fifths x = StartFraction 7 Over 20 EndFraction x + five-fourths

C. Negative three-fourths = negative StartFraction 1 Over 20 EndFraction x minus
one-half

D. Negative three-fourths = three-fourths x minus one-half

E. Negative three-fourths + StartFraction 1 Over 20 EndFraction x = negative one-half

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation

Which of the following contains a variable?