Answer:
x = 1
Step-by-step explanation:
Using the rules of exponents
=
× ⇔
Note that 9 = 3² and 27 = 3³ , thus
×
= ×
= ×
=
= , then
=
Since the bases on both sides are equal, equate the exponents
5x - 4 = 1 ( add 4 to both sides )
5x = 5 ( divide both sides by 5 )
x = 1
If you would like to know what percent of earnings did Jon pay in entertainment expenses, you can calculate this using the following steps:
x% of $38000 is $6840
x% * 38000 = 6840
x/100 * 38000 = 6840
x * 380 = 6840 /380
x = 6840 / 380
x = 18%
The correct result would be 18%.