Question

Please help me with this! Picture is provided and only answer is you know it!

Answer 1

Option A

Explanation:

Number of components assembled by the new employee per day,

N(t) =
`(50t)/(t+4)`

Number of components assembled by the experienced employee per day,

E(t) =
`(70t)/(t+3)`

Difference in number of components assembled per day by experienced ane new employee

D(t)= E(t) - N(t)

D(t) =
`(70t)/(t+3)-(50t)/(t+4)`

=
`(70t(t+4)-50t(t+3))/((t+3)(t+4))`

=
`(70t^2+280t-50t^2-150t)/((t+3)(t+4))`

=
`(20t^2+130t)/((t+3)(t+4))`

=
`(10t(2t+13))/((t+4)(t+3))`

Therefore, Option A will be the answer.