Answer:
81/25
Step-by-step explanation:
Multiply both top and bottom by 10 for every number after the decimal point:
As we have 2 numbers after the decimal point, we multiply both numerator and denominator by 100. So,
3.24/1 = (3.24 × 100)(1 × 100) = 324/100.
(324÷4)(100÷4) = 81/25 when reduced to the simplest form. It's also equal to 3 6/25 or 81/25
Answer:
40 pens
Step-by-step explanation:
Let the total number of pens Ron had be x.
We need to find the fraction of the pen that were blue.
3/8 of them were black and 1/4 of them were red. This means that the fraction of the pens that were blue is:
1 - (3/8 + 1/4) = 1 - 5/8 = 3/8
There were 15 blue pens. This means that 3/8 of x is 15:
3/8 * x = 15
x = 15 * 8/3 = 40 pens
Ron had 40 pens.
14c is equal to the total number of students taking the class because you have to multiply 14 by the number of classes (c)
