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Contact [7]
3 years ago
9

In the following activity, write an equation to represent each verbal statement, and use it to find the value of each unknown nu

mber. Then, put the solution values in order from smallest to largest. [Note: The smallest solution is "first", and the largest solution is "fifth".]
The sum of a number and two is equal to the quotient of six and negative four.

The difference between four times a number and five has a result of negative eight.

Half of a number is added to four. This sum is equivalent to negative one.

The sum of a number and three is divided by five. The result is negative two.

The difference between a number and five is multiplied by negative two. The resulting product equals fourteen.

Look how many points this question is worth!!!!!!!!!!!!!!!
Mathematics
2 answers:
Artemon [7]3 years ago
7 0
In order of the questions:
Q1: -1/2
Q2: -3/4
Q3: -10
Q4: -13
Q5: 21

In order from smallest to largest:
Q4 Q3 Q2 Q1 Q5
34kurt3 years ago
3 0

Answer:

In order of the questions:

Q1: -1/2

Q2: -3/4

Q3: -10

Q4: -13

Q5: 21

In order from smallest to largest:

Q4 Q3 Q2 Q1 Q5

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How much does a sleeping bag cost? Let's say you want a sleeping bag that should keep you warm in temperatures from 20°F to 45°F
BARSIC [14]

Answer:

a) Sample Mean = 79.4

Sample standard deviation = 30.62

b) 90% Confidence interval:  (67.56 ,91.24)

Step-by-step explanation:

We are given the following in the question:

Prices for sleeping bags has an approximately normal distribution.

We are given the following sample:

35, 85, 105, 40, 100, 50, 30, 23, 100, 110, 105, 95, 105, 60, 110, 120, 95, 90, 60, 70

a)

Formula:

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}  

where x_i are data points, \bar{x} is the mean and n is the number of observations.  

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{1588}{20} = 79.4

Sum of squares of differences = 1971.36 + 31.36 + 655.36 + 1552.36 + 424.36 + 864.36 + 2440.36 + 3180.96 + 424.36 + 936.36 + 655.36 + 243.36 + 655.36 + 376.36 + 936.36 + 1648.36 + 243.36 + 112.36 + 376.36 + 88.36 = 17816.8

S.D = \sqrt{\displaystyle\frac{17816.8}{19}} = 30.62

b) 90% Confidence interval:  

\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}  

Putting the values, we get,  

t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.10} = \pm 1.7291  

79.4 \pm 1.73(\displaystyle\frac{ 30.62}{\sqrt{20}} ) = 79.4 \pm 11.84 = (67.56 ,91.24)

8 0
3 years ago
If you flip a coin 92 times, what is the best prediction possible for the number of times it will land on tails?
slamgirl [31]

Answer:

Hence, the probability of a head on Flip 1 and a head on Flip 2 is the product of P(H) and P(H), which is 1/2 x 1/2 = 1/4. The same calculation applies to the probability of a head on Flip 1 and a tail on Flip 2. Each is 1/2 x 1/2 = 1/4.

Step-by-step explanation:

4 0
3 years ago
A:b 1:5 a:c 2:1 how many times is b bigger than c ?
Ronch [10]

Answer:

b is 10 times greater

Step-by-step explanation:

If we multiply the first ratio by 2/2, we get 2/10. Since b=10 and c=1, b is 10 times greater.

3 0
3 years ago
Y= -7x-2<br> y+ 3 = -7x + 1<br> (<br> 2,3)<br> no solution<br> an infinite number of solutions
Naya [18.7K]

Answer:

Infinite number of solutions.

Step-by-step explanation:

y = -7x - 2

y + 3 = -7x + 1

Subtract 3 from both sides:

y = -7x - 2

- this is the same as the first equation.

We can put any number of valid combinations of x and y into this equation.

So there are infinite solutions.

8 0
3 years ago
Whats 8+0.3 in standard form and word form
Rudik [331]
8 + 0.3  = 

Standard . . .  8.3

Words . . . "eight and three tenths".
3 0
3 years ago
Read 2 more answers
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