You have $1.55 worth of dimes and nickels in a jar. There are 23 coins in the jar. How many dimes do you have? How many nickels do you have

Answers

Answer 1

Answer:

If the jar has $1.55 worth of dimes and nickels in a jar. There are 23 coins in the jar then there are 8 dimes and 15 nickels in the jar.

The total value of dimes and nickels in the jar is $1.55.

There are 23 coins in the jar.

d + n = 23 ...(1)

The total value of dimes and nickels is $1.55

0.10d + 0.05n = 1.55 ..(2)

Now, we need to solve this system of equations to find the values of "d" and "n."

We can use substitution or elimination method to solve it. Let's use the substitution method:

From Equation 1, we can rewrite it as: d = 23 - n

Now, substitute this value of "d" in Equation 2:

0.10(23 - n) + 0.05n = 1.55

2.30 - 0.10n + 0.05n = 1.55

Combine like terms:

-0.05n = 1.55 - 2.30

-0.05n = -0.75

Now, divide by -0.05:

n = -0.75 / -0.05

n = 15

Now that we have the value of "n" (nickels), we can find the value of "d" (dimes) from Equation 1:

d = 23 - n

d = 23 - 15

d = 8

Hence, there are 8 dimes and 15 nickels in the jar.

To learn more on Equation:

brainly.com/question/10413253

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Answer 2

Answer:

i believe the answer is 35 dimes and 65 nickels (sorry if i’m wrong lol)

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What is an equivalent expression for (6^4 *8^-7)^-9

Answers

Answer:

(6⁴ * 8⁻⁷) ⁻⁹

equivalent expressión is:

1 / (6⁴ * 8⁻⁷)⁹

Step-by-step explanation:

(6⁴ * 8⁻⁷) ⁻⁹

= 1 / (6⁴ * 8⁻⁷)⁹

You are required to choose two topics from a list of six to write about on your science test. How many different pairings are possible?10
15
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Answers

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I WILL MARK BRAINLIEST!A cylindrical well is 20 meters deep and has a diameter of 1.5 meters. Approximately how many cubic meters of soil were dug out to make the well? (Use π = 3.14.) (5 points)

11.78 cubic meters
35.33 cubic meters
121.20 cubic meters
141.30 cubic meters

Answers

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Convert 5.764764764 … to a rational expression in the form of a over b, where b ≠ 0

Answers

I just learned a short time ago how to convert a repeating decimal to a fraction.

-- Take the repeating part of the decimal. In this one, it's '764' .

-- Make a fraction out of it by writing it over the same number of 9s.

   The fraction here is 764/999 .

-- Simplify it if possible and if you feel like it.

   764/999 can't be simplified. (I think.)

So the rational expressions for this decimal are

   (5 and 764/999)   or   5759/999   .

Final answer:

To convert the repeating decimal 5.764764764... to a rational number, we first create a variable to represent the decimal, then manipulate it to remove the repeating part. The resulting rational expression is 5759/999.