How many times can each of the pieces of the fraction bars be divided to model ? each piece of each bar can be divided into 2 pieces. each piece of each bar can be divided into 12 pieces. each piece of the bar can be divided into 3 pieces, and each piece of the bar can be divided into 4 pieces. each piece of the bar can be divided into 4 pieces, and each piece of the bar can be divided into 3 pieces.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

i'm sorry mate, but i am not seeing any figures. i am unable to solve this for you.

d. you cannot tell because there are no values shown.

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

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