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3 years ago

5

lucy has 4 less quarters then nicklesand 3 more dimes then nickels; she has a total of 35 coins. How many of each coind does she

uave and what is the total for her coins in dollars and cents?

1 answer:

ki77a [65]3 years ago

4 0

She has 12 nickels, 8 quarters, and 15 dimes. this equals $3.45

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Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage r

saw5 [17]

Using exponential function concepts, it is found that it represents a decay of 0.9%.

<h3>What is an exponential function?</h3>

A decaying exponential function is <em>modeled </em>by:

$A(t) = A(0)(1 - r)^t$

In which:

A(0) is the initial value.

r is the decay rate, as a decimal.

In this problem, the function is:

$A(t) = 9300(0.991)^{6t}$

Hence:

$1 - r = 0.991$

$r = 0.009$

Thus, it represents a decay of 0.9%.

You can learn more about exponential function concepts at brainly.com/question/25537936

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2 years ago

The committee is planning to have frozen fruit bars for desert. If frozen fruit bars come in boxes of 12, how many boxes of froz

lesya [120]

Answer:

Kindly check explanation

Step-by-step explanation:

Based on the infomation given :

Number of frozen fruit per box = 12

The number of people the makes up the committee should be given on other to obtain an exact answer.

To obtain the number of boxes of frozen fruits :

We divide the Number of committee members by the number of frozen fruits per box ; that is

1f number of committee members = x

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Number of boxes to order = x / 12

If number of committee members is given, substitute the number for X

7 0

2 years ago

When Noah goes bowling, his scores are normally distributed with a mean of 150 and a standard deviation of 12. What is the proba

Zarrin [17]

Answer:

The probability of his score being between 135 and 167 is 0.8151 or (0.8151*100=81.51%)

Step-by-step explanation:

Given that:

Mean = μ = 150

SD = σ = 12

Let x1 be the first data point and x2 the second data point

We have to find the z-scores for both data points

x1 = 135

x2 = 167

So,

$z_1 = \frac{x_1-mean}{SD}\\= \frac{135-150}{12}\\=\frac{-15}{12}\\=-1.25$

And

$z_2 = \frac{x_2-mean}{SD}\\z_2 =\frac{167-150}{12}\\=\frac{17}{12}\\= {1.416}$

We have to find area to the left of both points then their difference to find the probability.

So,

Area to the left of z1 = 0.1056

Area to the left of z2 = 0.9207

Probability to score between 135 and 167 = z2-z1 = 0.9027-0.1056 = 0.8151

Hence,

The probability of his score being between 135 and 167 is 0.8151 or (0.8151*100=81.51%)

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Answer:

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Step-by-step explanation:

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