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2 years ago

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Jim has only dimes and nickels in his coin bank. He has 37 coins with a total value of $2.65. How many nickels are in Jim's coin

bank

2 answers:

LekaFEV [45]2 years ago

7 0

Answer:

$21\ nickels$

Step-by-step explanation:

we know that

$1\ nickel= \$0.05$

$1\ dime= \$0.10$

Let

x-------> the number of nickels

y-------> the number of dimes

$x+y=37$ ------> isolate the variable y

$y=37-x$ --------> equation A

$0.05x+0.10y=2.65$ ------> multiply by $100$ both sides

$5x+10y=265$ -------> equation B

Substitute equation A in equation B and solve for x

$5x+10(37-x)=265$

$5x+370-10x=265$

$10x-5x=370-265$

$5x=105$

$x=21\ nickels$

Galina-37 [17]2 years ago

7 0

Answer: the answer is 21 nickels.

Step-by-step explanation:

he only had 37 coins so if you think he has 53 nickels then you probably deserve to fail this quiz.

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