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Keith_Richards [23]
3 years ago
12

A box is filled with pennies, nickels, and dimes in a ratio of 2:3:4. If the total number of coins in the box is 1620, how many

pennies are in the box
Mathematics
1 answer:
IgorC [24]3 years ago
8 0
We could say that the number of pennies is 2x, nickels are 3x, and dimes are 4x. Adding all of them together, we get 2x+3x+4x=9x. We also know that 9x=1620 because the total amount of coins is 1620. Dividing by 9 on both sides we get x=180.
Pennies equal 2x= 2*180=360
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No, the given sequence is not an arithmetic sequence.

What is Arithmetic Sequence ?

An arithmetic sequence is a list of numbers with a definite pattern. If you take any number in the sequence then subtract it by the previous one, and the result is always the same or constant then it is an arithmetic sequence.

In the above question,

The sequence is 3,5/2,3/2,-3/2,...

Take the 2nd term and minus the 1st term.

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We can clearly notice that the differences are not same. Hence there is no common difference and therefore it's not an arithmetic sequence

To read about arithmetic sequence click here :

brainly.com/question/27079755

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Step-by-step explanation:

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