B + g = 16.....b = 16 - g
45b + 55g = 830
45(16 - g) + 55g = 830
720 - 45g + 55g = 830
-45g + 55g = 830 - 720
10g = 110
g = 110/10
g = 11 <=== there are 11 green cassettes
b + g = 16
b + 11 = 16
b = 16 - 11
b = 5 <=== there are 5 blue cassettes
One solution.
-20 divided by 5 is equal to -4. Unless both sides have the same number or one side has -=0 then it’s one solution
The ratio would be 4:1.
Try to reduce the ratio further with the greatest common factor (GCF).
The GCF of 64 and 16 is 16
Divide both terms by the GCF, 16:
64 ÷ 16 = 4
16 ÷ 16 = 1
The ratio 64 : 16 can be reduced to lowest terms by dividing both terms by the GCF = 16 :
64 : 16 = 4 : 1
Therefore:
64 : 16 = 4 : 1
Equivalent of fractions using decimals
The answer is 51 remainder 4 because 51* 4 =408 and 412 + 4 = 412
