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Anastaziya [24]
3 years ago
9

bob and steve walking 188.3 miles . steve carries bob 5/7 of the trip. how many miles is steve working?

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
3 0
134.4 miles, because 5/7 in decimal form is 1.4, divide 188.3/1.4 = 134.4 miles 
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John finds that the sum of two numbers is 24 and their difference is one sixth of the sum. Find the smallest number between the
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Answer:

The smallest number is 10

Step-by-step explanation:

x+y=24---equation 1

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Add both equations

2x=28

x=14

put x=14 into equation 1

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4 0
3 years ago
A study is done to find the 95% confidence interval for the difference in means between the ACT scores between two schools in a
Kitty [74]

Solution :

95% confidence interval for the difference between the means of ACT scores between two schools, is given by :

$[(\overline X_1 - \overline X_2)-ME, (\overline X_1 - \overline X_2)+ME]$

$\overline X_1 = 25.90 ,  \ \ \ \overline X_2 = 27.70$

$S_1=3.49, \ \ \ S_2 = 2.47$

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M.E. , Margin of error,

$=t_{n_1+n_2-2,0.025} \times \left( s \sqrt{\frac{1}{n_1}+\frac{1}{n_2}}$

$s^2 = \frac{(n_1-1)S_1^2+(n_2-1)S^2_2}{n_1+n_2-2}$

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s = 3.03

$t_{74,0.05} = 1.99$

$M.E. = 1.99 \times 3.03 \times \sqrt{\frac{1}{39}+\frac{1}{37}}$

        = 1.4

Therefore, 95% CI = [(25.90-27.70) - 1.4 , (25.90-27.70) + 1.4]

                              = [-3.2, -0.4]

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7 0
3 years ago
Which inequality represents the range of the relation graphed below?
Zarrin [17]

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Step-by-step explanation:

5 0
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alexandr1967 [171]

Hello from MrBillDoesMath!

Answer:  NO solution possible!


Steps:

Let "n" be the first even number. We are told that


n + (n+2) + (n+4) + (n+6) + (n +8)  = 216


The third number, the value we want, is boldfaced above.


Simplify the above equation:

5n + ( 2 + 4 + 6 + 8 ) = 216   or


5n +  20  = 216  or

5n = 196


n = 196/5   is NOT an integer value.  This problem, as stated, has no solution.

Regards, MrB

4 0
3 years ago
Same value as 15% percent of 20
MrRa [10]

Answer:

3

Step-by-step explanation:

7 0
3 years ago
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