Question

choose what best completes the statement
2(5-3x)= 1/16

a.{8}
b.{-3}
c.{1/8}
d.{3}

Answer 1

it doesn't work?

Answer 2

none, but the answer would be 477/32

Answer 3

i mean 53/32

Answer 4

hmmm thats weird

Answer 5

it just doesn't work with a-d ^^
just solve the equation

Answer 6

\[2^{(5-3x)}\] i think the first part may look like this instead

Answer 7

well can't check this one with mental math xD

Answer 8

it's d don't think i needed 6 min just started :P

Answer 9

if the problem is 2 raised to the power (5−3x) = 1/16, then taking log[base 2] of both sides of equation LHS and RHS, gives us log[base 2] of 2 raised to the power (5−3x) = log[base 2]1/16, then the LHS is 5-3x and the right RHS is log[base 2](1/16).

So equation is now 5-3x = -4, then 5+4 = 3x, and 9/3 = x. Thus x = 3...

Answer 10

thanks guys