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ale4655 [162]
3 years ago
7

26 = 2(3x - 2) please help

Mathematics
2 answers:
Nadya [2.5K]3 years ago
8 0

Answer:x=5

2(3x-2)=6x-4

6x-4=26

6x=30

x=5

Step-by-step explanation:

nexus9112 [7]3 years ago
5 0

Answer:multiple 2 to the prantesis

26= 6x- 4

Now move the-4

to the left now you have

30=6x

X= 30/6= 5

Step-by-step explanation:

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Suppose the number of a particular type of bacteria in samples of 1 milliliter (ml) of drinking water tend to be approximately n
Irina-Kira [14]

Answer: 0.0475

Step-by-step explanation:

Let x = random variable that represents the number of a particular type of bacteria in samples of 1 milliliter (ml) of drinking water, such that X is normally distributed.

Given: \mu=85,\ \ \sigma=9

The probability that a given 1-ml will contain more than 100 bacteria will be:

P(X>100)=P(\dfrac{X-\mu}{\sigma}>\dfrac{100-85}{9})\\\\=P(Z>1.67)\ \ \ \ [Z=\dfrac{X-\mu}{\sigma}]\\\\=1-P(Zz)=1-P(Z

∴The probability that a given 1-ml will contain more than 100 bacteria

0.0475.

3 0
3 years ago
lisa goes to school for 7 hours per day works 3 hours per day and sleeps 8 hours per day. what is the ratio of hours lisa works
frozen [14]

Answer:

ratio of hours lisa works to hours lisa sleeps= 3:8

Step-by-step explanation:

lisa goes to school for 7 hours per day lisa works 3 hours per day

Lisa sleeps 8 hours per day.

For the ratio of hours lisa works to hours lisa sleeps

ratio of hours lisa works to hours lisa sleeps= hours Lisa works/hours Lisa sleeps

ratio of hours lisa works to hours lisa sleeps= 3/8

ratio of hours lisa works to hours lisa sleeps= 3:8

4 0
3 years ago
Can someone please help me I keep getting the same answer
beks73 [17]

Answer:

  • (5, -20)

Step-by-step explanation:

<u>Given</u>

  • - 6x + y = -50
  • y = -4x

<u>Solution</u>

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  • -10x = -50
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  • x = 5
  • y = -4*5 = -20

5 0
3 years ago
Someone please help!! I’ll give brainliest!
snow_lady [41]

Answer:

1766.3

Step-by-step explanation:

V=4 /3πr^3

= 4/3(3.14)(7.5)^3

= 4/3(3.14)(421.88)

= 4/3(1324.69)

= 1766.25

= 1766.3

I hope this is right!

3 0
3 years ago
How many 34s are in 2?
sergejj [24]

Answer:

17

Step-by-step explanation:

34/2=17

6 0
2 years ago
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