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Given u = 4v – 3t, find
(a)the value of u when v = 5 and t = -1,
(b) the value of t when v = 2 and u = -10.​

Respuesta :

Answer:

u = 23 and t = 6

Step-by-step explanation:

Given

u = 4v - 3t

(a)

u = 4(5) - 3(- 1) = 20 + 3 = 23

(b)

- 10 = 4(2) - 3t

- 10 = 8 - 3t ( subtract 8 from both sides )

- 18 = - 3t ( divide both sides by - 3 )

6 = t

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