Answer:
39 dimes
Explanation:
From the graph:
• Total number of nickels = 9+4+7=20
,
• Total number of dimes = 7+10+9 = 26
The ratio of total nickels to total dimes = 20:26
If the total number of nickels the students donate is increased to 30, we have:

We then solve for x:

The number of dimes they should donate to keep the ratio of total nickels to total dimes the same is 39.
So if 30 cents out of every dollar go to taxes, then the net income is 70 cents out of every dollar. So the ratio of taxes to net income is 30:70 (30 cents taxes to 70 cents net income) which is 3:7
Answer:
Step-by-step explanation:
D = 3,1
E = 1,-2
F= -4,2
What rate ? I need the full questions