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matrenka [14]
3 years ago
6

Share £747 in the ratio 2:7 between Tom and benTom will getDan will get​

Mathematics
1 answer:
Lelu [443]3 years ago
7 0

2+7x=747 X83                 83(2)=83             83(7)= 581

Step-by-step explanation:

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A sample of n = 9 college students is used to evaluate the effectiveness of a new Study Skills Workshop. Each student’s grade po
Vinil7 [7]

Answer:

80% Confidence interval:  (0.4603,0.7397)

Step-by-step explanation:

We are given the following in the question:

Sample mean, \bar{x} = MD = 0.60 points

Sample size, n = 9

Sample variance =  0.09

Sample standard Deviation =

=\sqrt{\text{Sample Variance}} = \sqrt{0.09} = 0.3

80% Confidence interval:  

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

Putting the values, we get,  

t_{critical}\text{ at degree of freedom 8 and}~\alpha_{0.20} = \pm 1.397  

0.60 \pm 1.397(\frac{0.3}{\sqrt{9}} ) = 0.60 \pm 0.1397 = (0.4603,0.7397)

8 0
4 years ago
2x-(10+4x)=3x-7 what is the answer
ZanzabumX [31]
X=-3/5

    3
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    5
 X=-3/5 would be the answer
6 0
3 years ago
In 4 years time I saw me three times as old as Mary who is now nine years of age how old am I​
ioda

Answer:

12

Step-by-step explanation:

4x3=12

5 0
3 years ago
Read 2 more answers
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Mkey [24]
Answer:

2-3x=-6

We simplify the equation to the form, which is simple to understand
2-3x=-6

We move all terms containing x to the left and all other terms to the right.
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We simplify left and right side of the equation.
-3x=-8

We divide both sides of the equation by -3 to get x.
x=2.66666666667

God bless you and have a beautiful rest of the day!
8 0
3 years ago
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You lose 3 points for 30 sec on the timer limit youre speech is 90 sec? pg.34
Simora [160]
He loses 9 pts for 90 sec
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3 years ago
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