Which of the following expressions could be used to find 80% of x? 8/100 . x ~ 80/100 . x ~ 8/10 . x ~ 4/10 . x ~ 8/5 . x ~ 80 . x ~ 8 . x ~ (0.8) . x ~ (0.08) . x

answer is  

a.

p = 78

step-by-step explanation:

simplifying

7ln(x + 2.8) = 11.2

reorder the terms:

7ln(2.8 + x) = 11.2

(2.8 * 7ln + x * 7ln) = 11.2

(19.6ln + 7lnx) = 11.2

solving

19.6ln + 7lnx = 11.2

solving for variable 'l'.

move all terms containing l to the left, all other terms to the right.

reorder the terms:

-11.2 + 19.6ln + 7lnx = 11.2 + -11.2

combine like terms: 11.2 + -11.2 = 0.0

-11.2 + 19.6ln + 7lnx = 0.0

the solution to this equation could not be determined.

step-by-step explanation:

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