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Vesnalui [34]
3 years ago
9

your bank balance is 515.50. if you write a check to buy a watch, your balance would be 496.11. how much dose the watch cost ? w

rit a linear equation on that models the situation
Mathematics
1 answer:
grin007 [14]3 years ago
5 0
<h2>Hello!</h2>

The answer is:

WatchCost=StartingBalance-EndingBalance\\\\WatchCost=515.50-496.11=19.39

The cost of the watch is $19.39.

<h2>Why?</h2>

To solve the problem, we can create a linear equation using the given information about the starting balance and the ending balance.

We know that the starting balance was $515.50, and then, after writing a check to buy the watch, the balance was $496.11, so, writing the function we have:

WatchCost=StartingBalance-EndingBalance\\\\WatchCost=515.50-496.11=19.39

Hence, we have that the cost of the watch is $19.39.

Have a nice day!

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alexdok [17]

Answer:

H_{0}: \mu \leq 600\text{ dollars}\\H_A: \mu > 600\text{ dollars}

Step-by-step explanation:

We are given the following in the question:

Manager's claim: The mean guest bill for a weekend is $600 or less.

A member of the hotel’s accounting staff noticed that the total charges for guest bills have been increasing in recent months.

A sample of weekend guest bills were collected to test the manager’s claim.

We design the null and alternate hypothesis in the following manner:

H_{0}: \mu \leq 600\text{ dollars}\\H_A: \mu > 600\text{ dollars}

Conclusion when null hypothesis cannot be rejected:

When we fail to reject the null hypothesis and accept the null hypothesis, thus, we have enough evidence to support the manager's claim that the mean guest bill for a weekend is $600 or less.

Conclusion when null hypothesis can be rejected:

When the null hypothesis is rejected, we accept the alternate hypothesis.

Thus, there are not sufficient evidence to support the manager's claim  that the mean guest bill for a weekend is $600 or less.

5 0
3 years ago
Jax solved an equation and justified his steps as shown below. What reason would justify step 2?
koban [17]
Answer: The Subtraction Property of Equality

In the problem that Jax solved he subtract 5 from both sides of the equation. This is an example of the subtraction property of equality.

The property states that if you subtract the same amount from both sides of an equation the equation remains the same.
4 0
3 years ago
What is 0.000012 pounds in word form
erastovalidia [21]
The answer is twelve millionth



In a scientific notation, you have to put a decimal right after the first number (unless it is a zero). How many times you move the decimal from its original spot determines the answer. (FYI: In a number like 196 the decimal point is 196.000<--here)
<span>
1.46000000 (moved the decimal point 8 times, so the answer is --->)  
1.46×</span>10^{8}
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3 years ago
Ali graphs the function f(x) = -(x + 2)2 - 1 as shown.
lyudmila [28]

The Answer:

The axis of symmetry should be x=2

Step-by-step explanation:

The question clearly states x+2 meaning it shouldn't be - 2

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6 0
3 years ago
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You recently took a statistics exam in a large class. The instructor tells the class that the scores were Normally distributed,
Lunna [17]

Answer:

b. the area to the right of 2

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X, which is also the area to the left of Z. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X, which is the area to the right of Z.

In this problem:

X = 96, \mu = 72, \sigma = 12

Z = \frac{X - \mu}{\sigma}

Z = \frac{96 - 72}{12}

Z = 2

Percentage who did better:

P(Z > 2), which is the area to the right of 2.

5 0
3 years ago
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