Answer:
0.28
Step-by-step explanation:
Of the 17+28+15 = 61 whose highest degree is 2-year, 17 have an urban place of residence. The relative frequency is ...
17/61 ≈ 0.28
2 times a number, x, is equal to 6 less than 3 times the number, x.
2x = 3x - 6
-1x = -6
x = 6
The number is 6.
A)
Since 5 of the books are new, that means that the other books are used. So, there are 11-5=6. The ratio would be 5:6.
b)
The ratio is 6:11. You get the 6 from the above problem.
Hope this helps!