In 2 seconds an elevator travels 40 feet. In 3 seconds the elevator travels 69 feet in for seconds the elevator travels 80 feet. Write an equation that gives the relationship between the number seconds x and the distance y the elevator travels

The equation is y=20x

Step-by-step explanation:

Speed=distance/time

The distance moved by the elevator is in multiples of 20

Y= 20x

When x =2 seconds, y=20x=20×2=40feet

When x= 3seonds, y = 20x= 20×3=60feet

When x=4 seconds,y= 20x= 20×4= 80feet.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

yes because they have the same amount of green and blur marbles.

step-by-step explanation: