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Answer: 17 nickels, 8 dimes
Step-by-step explanation:
Since we are given system of equations, we can use elimination method to find n or d. First, let's eliminate n. To do so, we need to make sure they are equal to each other. Then, we would have to multilpy the second equaiton by 0.05.
0.05N+0.1D=1.65
0.05N+0.05D=1.25
Now, we can subtract the 2 equations.
0.05D=0.4
D=8
Now that we know the number of dimes, we can plug it into any of the equations to find nickels.
N+8=25
N=17
There are 17 nickels and 8 dimes.
The amount of blue color in the green paint is an illustration of ratios and proportions.
Cheryl's green paint has more blue color
The proportion of blue color is calculated as:

So, we have:



Express as percentage




Express as percentage

By comparison: 40% >37.5%
Hence, Cheryl's green paint has more blue color
Read more about proportions at:
brainly.com/question/21126582
Answer:
C is 40 and D is 75
Step-by-step explanation:
look at the angle