So,
20.7 = (3 1/3)x
x represents the amount he earns per hour.
To solve for x, use inverse operations and divide both sides of the equation by 3 1/3.
(3 1/3)x divided by 3 1/3 equals x
20.7 divided by 3 1/3 equals 6.21.
He earns $6.21 per hour.
To get how much money he earns in 4 1/4 hours, you have to multiply 6.21 by 4 1/4. This would equal 26.3925. However, we need to round it to the nearest cent.
26.3925 rounded to the nearest cent is 26.39.
Jack would make $26.39 in 4 1/4 hours