riahbear riahbear

21-01-2017
Mathematics

Answered

If D varies directly with t and D is 105 when t is 3, find D when t is 8.

A35
B280
C840

plz help

Verified Answer :

apologiabiology apologiabiology

21-01-2017

d varies directly with t means
d=kt

105=3k
divide both sids by 3
35=k

d=35t
when t=8
d=35(8)
d=280

B

Answer Link

eric05henn eric05henn

15-10-2020

Answer: 280

Step-by-step explanation:

d varies directly with t means

d=kt

105=3k

divide both sids by 3

35=k

d=35t

when t=8

d=35(8)

d=280

thus 280 is the answer

Answer Link

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