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inessss [21]
4 years ago
13

1. 26=8+v

Mathematics
1 answer:
Mademuasel [1]4 years ago
7 0

Step-by-step explanation:

1.) 18=v

2.) p=5

3.) b=8

4.) n=9

5.)m=-16

6.)x=20

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Solve for x: 12x-20=6(x-20)-9x
tigry1 [53]

Answer:

Step-by-step explanation:

12x-20=6(x-20)-9x

Opening bracket

12x - 20 = 6x - 120 - 9x

Collecting like terms

12x - 6x + 9x = -120 + 20

15x = -100

Dividing by 15

15x/15 = -100/15

x = -20/3

x = - 6 2/3

6 0
3 years ago
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This is probably rly easy but need help asap
Nata [24]

Answer:

x = 16

y = 14.8

Step-by-step explanation:

hope that helped

3 0
3 years ago
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95% of students at school weigh between 62 kg and 90 kg. Assuming this data is normally distributed, what are the mean and stand
stiks02 [169]
We can calculate (62 + 90) / 2 = 76. it's <span>known that 95% lies between the mean and twice the standard deviation. </span><span>if the mean is "μ" and the standard deviation is "σ": </span><span>μ-2σ and μ+2σ. i</span><span>f μ=76, then </span><span>76+2σ = 90, so 2σ = 14, so σ = 7.
</span>
<span>the mean is 76 and the standard deviation 7. </span>
5 0
3 years ago
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In a survey of students, each student selected from a list of 12 songs the 2 songs that the student liked best. If each song was
BigorU [14]

Answer: D

Step-by-step explanation:

5 0
3 years ago
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1. In school lottery to win a price for "Free Domino's Pizza" it is required to select 5 numbers (in any order) out of 40 number
barxatty [35]

Answer:

1/8 ;

12 / 51

Step-by-step explanation:

To select any 5 numbers out of 40

Number of selection required / total numbers

Probability of winning = 5 /40 = 1/8

Total number of socks = 18

White, W = 8

Black, B = 6

Blue, C = 4

probability, without looking in the drawer, that you will first select and remove a black pair, then select either a blue or a white pair?

P(B) * [(P(C) + P(W)]

Probability = required outcome / Total possible outcomes

P(B) = 6 / 18 = 1/3

Without replacement :

P(W or C) = 8/17 + 4/17 = 12/17

Hence,

1/3 * 12/17

= 12 / 51

8 0
3 years ago
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