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arlik [135]
3 years ago
13

A store in Melrose, Massachusetts advertised a 35-mm camera for $259.99 and a wide-angle lens for $89.99. What is the total purc

hase price if the state sales tax rate is 6 percent
Mathematics
1 answer:
svetoff [14.1K]3 years ago
7 0

Answer:

The total purchase price is $370.97.

Step-by-step explanation:

Given;

price of the 35-mm camera, =  $259.99

price of the wide-angle lens = $89.99

TAX rate = 6% = 0.06

The total purchase price = 0.06($259.99 + $89.99) + ($259.99 + $89.99)

The total purchase price = $20.99 + 349.98

The total purchase price = $370.97

Therefore, the total purchase price is $370.97.

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Sarawong is carrying six pages of math homework and four pages of english homework. a gust of wind blows the pages out of his ha
Eduardwww [97]
The sample space of the experiment (i.e. the total number of ways he can pick 7 random pages out of a total of 6 + 4 = 10 pages) is given by:

^{10}C_7=120

If he picks at least 5 pages of maths homework, this means that he either picked 5 pages or 6 pages of maths homework.

The number of ways he can pick 5 or 6 maths homework is given by:

^6C_5+{ ^6C_6}=6\times1=6

Therefore, the probability that he recovers at least 5 pages of his math homework is given by:

\frac{6}{120} = \frac{1}{20}
5 0
3 years ago
The price of silver went from $26.40 a troy ounce down to $17.16 a troy ounce during the past 6 months. This represents a decrea
const2013 [10]

There is decrease of 35% in the price of silver in the past 6 months.

<u> Solution: </u>

Given that  

Price of silver went from $26.40 a troy ounce down to $17.16 a troy ounce during past 6 months need to represent this decrease in percentage  

Price of silver before 6 months = initial price = $26.40

Price of silver now = current price = $17.16

Difference in price in 6 months = 26.40 – 17.16 = $9.24

\text { Decrease in percentage }=\frac{\text { Diffrence in } 6 \text { months }}{\text { Initial price }} \times 100

\begin{array}{l}{=\frac{9.24}{26.4} \times 100} \\\\ {=0.35 \times 100=35 \%}\end{array}

Hence there is decrease of 35% in the price of silver in the past 6 months.

3 0
3 years ago
Which scenarios have a posItive correlation. MARK ALL THAT APPLY. *
Anit [1.1K]

Answer:

Step-by-step explanation:

well the negative correlations are the number of calories consumed and the amount of weight lost by a person and the thickness of the ice on a lake and the likelihood of falling through the ice.

Negative correlation is defined as an inverse relationship between two entities. If entity 1 increases, entity 2 decreases and if entity 2 increases, then entity 1 decreases.

So the postive are

the temperature outside and the number of pool guests

the number of children assigned to a class and the number of desks

the number of children assigned to a class and the number of desks

the price of apples and the number of giraffes in Africa

6 0
3 years ago
State your conclusion to the following hypothesis test.
Pepsi [2]

Answer:

Part A

a. There is not sufficient sample evidence to conclude that the full-time placement rate is now less than 87% because the p-value is greater than 0.05

Part B

\hat Y = 17.9·(x) + 1.6

Part C

The teen pregnancy rate in Florida is 6.54

Step-by-step explanation:

The percentage of graduates that find full-time employment in their fields within the first year of graduation = 87%

The significant level of the hypothesis test = 5% = 0.05

The p-value = 0.07

Given that the testing conditions are met, we have;

The p-value is larger than the significant level of 0.05, therefore, it cannot be concluded that there is significant difference between the two rates

Therefore;

There is not enough statistical evidence available to come to a conclusion that the placement rate of full-time students has reduced below the given 87% because from the statistics, the p-value is larger than 0.05.

Part B

Number of Pages, x; 7, 12, 4, 14, 25, 30

Cost, y; 128, 213, 75, 250, 446, 540

The regression analysis formula is;

Y = a + b·X

We have;

b = \dfrac{N\sum XY - \left (\sum X  \right )\left (\sum Y  \right )}{N\sum X^{2} - \left (\sum X  \right )^{2}}

∴ b = (6×34602-92×1652)/(6×1930 - 92²) ≈ 17.852

a = \dfrac{\sum Y - b\sum X}{N}

a = (1652 - 17.852 × 92)/6 ≈ 1.6

∴ Y ≈ 17.9·(x) + 1.6

Part C

The given regression model is y = 4.3 + 1.4(x)

Therefore, at x = 1.6, we get;

y = 4.3 + 1.4 × 1.6 = 6.54

The suggests that the teen pregnancy rate in Florida is 6.54.

8 0
3 years ago
I am so bored yall ttm plz
Akimi4 [234]

<em>fr i need some tea or sum like-</em>

4 1
3 years ago
Read 2 more answers
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