Divide the weekly amount by the number of hours worked:
75.20 / 18 = 4.177
Rounded to the nearest cent = $4.18 per hour.
C=x+9, c+x=99, c=99-x
So we have two equations equal to c, c=x+9 and c=99-x, since c=c:
x+9=99-x
2x+9=99
2x=90
x=45, and since c=x+9, c=54
So Charlie weighs 54 kg and his brother weighs 45 kg.
20 markers are needed to cover the 10 kilometers.
The flower garden is 4 feet by 12 feet. 4(12)= 48. or 48/4=12
The expressions is undefined in the set of the real numbers.
