Answer:
b = 5/12
Step-by-step explanation:
You have the proportion
1/(3b) = 4/5
Cross multiply to get rid of the fractions...
5 = 12b now solve for b
5/12 = b (divide by 12 on both sides)
Answer:
Add 4 to both sides
x<7
Step-by-step explanation:
That relationship can be expressed by either of ...
15.6 - 11.7 = 3.9
3.9 ÷ 15.6 = .25
25% of change