A ratio of 5 to 4 means 5 out of 9 voted yes:

Answer: 3780
0.40 is actually 2/5.
2/5=4/10=8/20=16/40
How did I create all of these fractions?
Quite simple... I multiplied each fraction by 1... What do you mean?
2/5*2/2=4/10
2/2 is one by the way.
4/10*2/2=8/20.
You get the idea?
Convert the percentage into a decimal:

Set up a proportion using the hours Andrea worked, and the percentage compared to Carmen's workload:

The numerator will represent the hours worked, and the denominator will represent the percentage when compared to Carmen's workload.
Cross multiply the fractions:

Divide both sides by 0.45 to get x by itself:

Carmen worked
20.56 hours last week.
Answer:
5x = 2x
Step-by-step explanation:
Solve for x=0
2×0+3y=6
3y=6
y=6/3
y=2
intersect y- axis at (2,0)