Answer:
5:1
Step-by-step explanation:
Originally the ratio is 20:4
but then it is simplified to 10:2
then 5:1
Answer:
1.2⋅10
−4
Step-by-step explanation:
I think it may be: 0.66666666666
I only looked it up on the internet.
As it is only 5, it is 5/1 so you do 5 x 3 = 15 then 1 x 4 = 4. So 15/4
Answer:
4a is s(50-30-20)
4b is 10
Step-by-step explanation:
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