What is the ratio of a : b, knowing that a — b = 3
a + b = 5
1 answer:
Answer:
4:1
Step-by-step explanation:
a — b = 3
then a= 3+b
a + b = 5
3+b +b = 5
3+2b=5
2b=5-3
2b=2
b=1
a= 3+b
a=3+1=4
a:b= 4:1
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