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4 years ago

How many different ways can you make change for a 50-cent coin using nickels and dimes?

Mathematics

1 answer:

yan [13]4 years ago

6 0

Answer:

10 ways

Step-by-step explanation:

When we do not use any quarters, we can use 0,1,2,3,4, or 5 dimes only

and the rest of the 50 cents, if any, in nickels. That's 6 ways.

If we use only 1 quarter, then we can use 0,1, or 2 dimes, and

the rest is nickels. That is 3 more ways.

if We can use 2 quarters. That's 1 more way.

So together there are 6+3+1 = 10 ways. in total

hope you got the point.

You might be interested in

Tins of paint are filled at the rate of 2m3 per minute.

alex41 [277]

Answer:

160,000 tins

Step-by-step explanation:

To find the number of tins, divide the fill rate by the volume per tin.

(2·(1000 L)/min)×(60 min)/(1 h)/(0.75 L/tin) = 160,000 tin/h

160,000 tins of paint can be filled in 1 hour.

_____

Additional comment

That's one tin every 22.5 milliseconds. It would be a feat of engineering to move that volume without splashing.

There are 60 minutes per hour. There are 1000 liters per cubic meter.

7 0

2 years ago

Simplify (-7/8)(-3/4)

Alex17521 [72]

Answer: $=\frac{21}{32}\quad \left(\mathrm{Decimal:\quad }\:0.65625\right)$

Step-by-step explanation:

$\left(-\frac{7}{8}\right)\left(-\frac{3}{4}\right)$

$=\frac{7}{8}\cdot \frac{3}{4}$

$=\frac{7\cdot \:3}{8\cdot \:4}$

$=\frac{21}{8\cdot \:4}$

$=\frac{21}{32}$

6 0

3 years ago

In the work below, which Algebraic rule is being used? 6(x+3) = 6x + 6*3

Elanso [62]

Im pretty sure its distribution property.

3 0

4 years ago

The standard deviation tells us a. the average value of the scores. b. the relative standing of a particular score. c. the skewn

andreyandreev [35.5K]

We can say that the standard deviation tells us the dispersion of the scores, making option D the correct choice.

<h3>What is the standard deviation?</h3>

A standard deviation (or σ) is a measure of how widely distributed the data is about the mean (μ). A low standard deviation suggests that data is grouped around the mean, whereas a large standard deviation shows that data is more spread out. A standard deviation around 0 suggests that data points are close to the mean, whereas a high or low standard deviation indicates that data points are above or below the mean, respectively.

We use the following formula to compute the standard deviation:

$\sigma = \sqrt\frac{{\sum_{i=1}^{N}\left | x_i - \mu \right | }^2}{N}$

In this formula, σ is the standard deviation, $x_i$ is the data point in the set we are solving for, μ is the mean, and N is the total number of data points.

<h3>How to solve the question?</h3>

In the question, we are asked to tell what standard deviations tell us from the given options.

From the above discussion, we can say that the standard deviation tells us the dispersion of the scores, making option D the correct choice.

Learn more about the standard deviation at

brainly.com/question/475676

#SPJ2

8 0

3 years ago

Read 2 more answers

If 3a-2b= 8 and a+3b=7 what is the value of 4a+b?

Fittoniya [83]

Step 1: Find the value of one variable in terms of the other.

$a+3b=7\\a=7-3b$

Step 2: Substitute the value you just found for this variable in the other equation.

$3a-2b=8\\3(7-3b)-2b=8\\21-9b-2b=8\\21-11b=8\\21=8+11b\\13=11b\\\frac{13}{11}=b\\ b=1\frac{2}{11}$

Step 3: Use your new value for the second variable to find the first.

$a+3b=7\\a+3(1\frac{2}{11})=7\\a+3\frac{6}{11}=7\\\\a=3\frac{5}{11}$

Now that we know the values for a and b we can find the value of 4a+b.

$4a+b\\4(3\frac{5}{11})+1\frac{2}{11}\\12+\frac{20}{11}+1\frac{2}{11}\\\\12+1\frac{9}{11}+1\frac{2}{11}\\\\\boxed{15}$

6 0

4 years ago