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Vinil7 [7]
3 years ago
7

Dan earns £384 over the course of a five-day week. How much is that per day?

Mathematics
2 answers:
Kazeer [188]3 years ago
6 0
The answer is 76.8 :)
Aneli [31]3 years ago
5 0

Answer:76.8

Step-by-step explanation:divde by 7 hope this helps god bless

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Djxjicjcjcicifiddiciicifididididjdjhhh​
Sedbober [7]

Answer:

18

Step-by-step explanation:

Let the unknown number be = x

Then,

x + 16 = 34

=> x = 34 - 16

=> x = 18 (Ans)

7 0
2 years ago
Read 2 more answers
The thicknesses of 81 randomly selected aluminum sheets were found to have a variance of 3.23. Construct the 98% confidence inte
Yuliya22 [10]

Answer:

The confidence interval for the population variance of the thicknesses of all aluminum sheets in this factory is Lower limit = 2.30, Upper limit = 4.83.

Step-by-step explanation:

The confidence interval for population variance is given as below:

[(n - 1)\times S^{2}  /  X^{2}  \alpha/2, n-1 ] < \alpha < [(n- 1)\times S^{2}  / X^{2} 1- \alpha/2, n- 1 ]

We are given

Confidence level = 98%

Sample size = n = 81

Degrees of freedom = n – 1 = 80

Sample Variance = S^2 = 3.23

X^{2}_{[\alpha/2, n - 1]}   = 112.3288\\\X^{2} _{1 -\alpha/2,n- 1} = 53.5401

(By using chi-square table)

[(n – 1)*S^2 / X^2 α/2, n– 1 ] < σ^2 < [(n – 1)*S^2 / X^2 1 -α/2, n– 1 ]

[(81 – 1)* 3.23 / 112.3288] < σ^2 < [(81 – 1)* 3.23/ 53.5401]

2.3004 < σ^2 < 4.8263

Lower limit = 2.30

Upper limit = 4.83.

8 0
2 years ago
T=3n-1 what is the 6th term
3241004551 [841]
Plug in 1 for n and solve, then plug in 2, and so on until you get to 3(6)-1=17
6 0
3 years ago
Read 2 more answers
what is the standard deviation of the data set given below 2 3 6 9 10 A: 10 B: square root of 10 C: square root of 12.5 D: squar
AleksAgata [21]
The standard deviation of the set of values (2, 3, 6, 9, 10) is <span>square root of 12.5 (</span>\sqrt{12.5}) therefore OPTION C

6 0
3 years ago
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Julian saved between $ 30 and $ 52 over the summer. His friend Daniela saved twice as much. Let n represent the amount of money
maks197457 [2]

Y = (30 + 52) * 2

Y = (82) * 2

Y = 164

Daniela saved $164

3 0
3 years ago
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