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nexus9112 [7]
1 year ago
7

Solve the linear equation 1: 5x+8/9=2x-7/182: 3x+3/5=6x-2/10

Mathematics
2 answers:
WARRIOR [948]1 year ago
5 0

Answer:x= - 23/54

x= 3/20

Step-by-step explanation:

i hope this helps

natta225 [31]1 year ago
5 0

Answer:

1.x= -23/54

2.x= 4/15

Step-by-step explanation:

1.5x-2x= -7/18 - 8/9

3x= -23/18 .......divide both sides by 3

x = -23/18 × 1/3

x = -23/54

2.3x-6x = -2/10 - 3/5

-3x = -1/5 - 3/5

-3x = -4/5......... divide both sides by -3

x = -4/5 × 1/-3

x = 4/15

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Beginning inventory
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7 0
3 years ago
There are 12 inches (in). in 1 foot (ft). which expression can be used to find the number of inches in 2.5 feet?
Ludmilka [50]
Given:
12 inches in 1 foot
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3 years ago
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Step-by-step explanation:

3 0
3 years ago
SAT verbal scores are normally distributed with a mean of 433 and a standard deviation of 90. Use the Empirical Rule to determin
laila [671]

34% of the scores lie between 433 and 523.

Solution:

Given data:

Mean (μ) = 433

Standard deviation (σ) = 90

<u>Empirical rule to determine the percent:</u>

(1) About 68% of all the values lie within 1 standard deviation of the mean.

(2) About 95% of all the values lie within 2 standard deviations of the mean.

(3) About 99.7% of all the values lie within 3 standard deviations of the mean.

$Z(X)=\frac{x-\mu}{\sigma}

$Z(433)=\frac{433-\ 433}{90}=0

$Z(523)=\frac{523-\ 433}{90}=1

Z lies between o and 1.

P(433 < x < 523) = P(0 < Z < 1)

μ = 433 and μ + σ = 433 + 90 = 523

Using empirical rule, about 68% of all the values lie within 1 standard deviation of the mean.

i. e. ((\mu-\sigma) \ \text{to} \ (\mu+\sigma))=68\%

Here μ to μ + σ = \frac{68\%}{2} =34\%

Hence 34% of the scores lie between 433 and 523.

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3 years ago
4(x+2)=30 <br> I need help
mars1129 [50]

Answer:

x = 11/2

Step-by-step explanation:

8 0
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