Mathematics, 09.07.2019 23:00 dondre54

Ihave 12 more nickels than quarters. if the coins are worth $5.40, how many nickels are there?

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Answer from: Kalij13

Let's try to create two equations to help us solve this problem. For this problem, will represent the number of nickels and will represent the number of quarters.

A first one could represent the number of coins we have. This does not regard the value of the coins, but rather just how many we could count. Based on the information in the problem, we could say:

n = 12 + q

After all, the number of nickels is 12 more than the number of quarters.

Now, let's create an equation to represent the value of the coins we have. Since each nickel is worth 5 cents, we can say the value of all the nickels in cents is . We can thus say for quarters that the value of all quarters in cents is 25q . Since we know the value of the coins we have adds to $5.40, or 540 cents, we can say:

5n + 25q = 540

Now, we have two equations:

n = 12 + q

5n + 25q = 540

We can use substitution to find our answers:

5(12 + q) + 25q = 540

60 + 5q + 25q = 540

30q + 60 = 540

30q = 480

q = 16

We have now found that the number of quarters we have is 16. When we use this value in one of our equations, we can find :

n = 12 + q

n = 12 + 16 = 28

We have 16 quarters and 28 nickels.

Answer from: Quest

the clues that signal the reader should change tone are the punctuation marks, the grammatical signs. for example, the quotation marks at the beginning of something someone else said literally or the exclamation marks.

the tone of the first line of dialogue until "gettysburg" is a kind tone, a tone of advise. the narrator is trying to the other person in doing something he or she obviously is finding hard to do by giving a piece of advise and bringing up a memory of a successful similar case.

the clue that the reader understand how to read the word "bang" is the exclamation mark. it gives the word a surprise tone, a strong accent.

the best tone for reading the word "bang" is an exciting tone, a surprise one, even a loud one.

the words that should be read with a formal tone are the ones that give factual information. the sentence: mister lincoln couldn't think of anything to say at the gettysburg" gives information about an event and it needs to be read formally, also, when the narrator wants to transmit calmness, a formal and slow tone is needed, because people also transmit messages with the vibrations of our voices and tones.

Answer from: Quest

answer

a the answer hopes this

step-by-step explanation:

Which table shows a proportional relationship?

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