The answer would be -2 i had the same problem on my quiz and the correct answer was -2
Since 1 cm = 10 mm
Then 4 cm = 40 mm
Okay here's an example so if we have 2, 3/2*1/2 we convert the mixed numbers to improper fractions. So in order to solve a mixed number you add the denominator, numerator and whole to get 7/2*1.2
So Multiple
7/2*1/2
Refine the fractions
7/2*2
Multiple the numbers 2*2=4 to get
7/4
and that equals 1, 3/4
The temperature decreased by 5 degrees per hour, as -25 / 5 is -5.
