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40 votes
40 votes
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.​

User Flion
by
3.1k points

1 Answer

19 votes
19 votes

Answer:

u = 23 and t = 6

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

User AshwinKumarS
by
2.8k points