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Answer: Choice A</h3>
0.10d + 0.05n = 2.25
d = 2n
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Explanation:
n = number of nickels
d = number of dimes
we have twice as many dimes as nickels, so we could have something like 18 dimes and 9 nickels. Algebraically we would write d = 18 and n = 9. The equation that fits this is d = 2n. The answer is between A and B at this point.
We rule out choice B since the 0.05d is incorrect. It should be 0.10d to represent the total value of all the dimes.
Choice A is correct
d = number of dimes
0.10d = value of all the dimes in dollars
n = number of nickels
0.05n = value of all the nickels in dollars
0.10d + 0.05n = total value from both coins combined
2.25 = total value from both coins combined
0.10d + 0.05n = 2.25
Answer:6.2 and 6.5
Step-by-step explanation:
First, make a plotline from least to greatest and organize your list of numbers from least to Greatest.
Next, go through your list of organized numbers and add a dot to that number on the plotline. Repeat until done with list of numbers.
Then, go through your plotline and find the number(s) with the most dots and you have your mode.
Definition of mode: The number which appears most often in a set of numbers.
