Suppose you were told that the company built the
fence in 4 hours and that they completed 1/6 mile of the
fence each hour. how would you use the double
number line to you find the length of the fence?

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

hit or miss i guess they never miss huh

step-by-step explanation:

you got a boyfriend i bet he doesnt kiss ya

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

source: