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Anna007 [38]
3 years ago
7

A jar contains only​ pennies, nickels,​ dimes, and quarters. There are 21 ​pennies, 26 ​dimes, and 15 quarters. The rest of the

coins are nickels. There are 76 coins in all. How many of the coins are not​ nickels? If n represents the number of nickels in the​ jar, what equation could you use to find​ n?
Mathematics
2 answers:
pshichka [43]3 years ago
8 0

Answer:

14

Step-by-step explanation:

21+26+15=62 72-62=14 :)

nekit [7.7K]3 years ago
7 0

Answer: The Answer is 62 coins

Step-by-step explanation:

If there are 76 coins in the jar in total,All you do is add all of the number of each coin there is except nickels and add it together. Then you take that amount away from the total number of coins to find out how many nickels are inside the jar.

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Answer:

2x-5= -20

move -5 to the other side

sign changes from -5 to 5

2x-5+5= -20+5

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divide by 2 for both sides

2x/2= -15/2

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x= -15/2

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4 years ago
100 point question. I attached a screenshot of the problem.
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Answer:

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3 years ago
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Lelechka [254]
The total of all the purchases is $73.94. The remaining balance on the card is $26.06. Hope this helps!
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3 years ago
Dominick borrowed $6,000 from a credit union at 9% simple interest for 30 months. What were his monthly installment payments to
Lady_Fox [76]

<em>Answer: </em>

<em>A = $7,350.00</em>

<em></em>

<em>Step-by-step explanation:</em>

<em>Equation:</em>

<em>A = P(1 + rt)</em>

<em>First, converting R percent to r a decimal</em>

<em>r = R/100 = 9%/100 = 0.09 per year.</em>

<em>Putting time into years for simplicity,</em>

<em>30 months / 12 months/year = 2.5 years.</em>

<em></em>

<em></em>

<em>Solving our equation:</em>

<em>A = 6000(1 + (0.09 × 2.5)) = 7350 </em>

<em>A = $7,350.00</em>

<em>The total amount accrued, principal plus interest, from simple interest on a principal of $6,000.00 at a rate of 9% per year for 2.5 years (30 months) is $7,350.00.</em>

<em>* Therefor, the answer is $7,350.00.</em>

<em>* Hopefully this helps:) Mark me the brainliest:)!!!</em>

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Interest earned = rate charged × amount invested

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