Table below shows the results. Event Count Blue 7 Red 8 Green 5 What was the experimental probability of choosing a blue marble from a bag? StartFraction 7 over 20 EndFraction StartFraction 7 over 13 EndFraction StartFraction 7 over 12 EndFraction StartFraction 7 over 8 EndFraction

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!