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3 years ago

X+(3x+2)+(1)/(2)x=29

Mathematics

1 answer:

Vladimir79 [104]3 years ago

5 0

Answer:

$\boxed{x=6}$

Step-by-step explanation:

$x+3x+2+0.5x=29$

$\sf Combine \ like \ terms.$

$4.5x+2=29$

$\sf Subtract \ 2 \ from \ both \ sides.$

$4.5x+2-2=29-2$

$4.5x=27$

$\sf Divide \ both \ sides \ by \ 4.5.$

$\displaystyle \frac{4.5x}{4.5} =\frac{27}{4.5}$

$x=6$

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7nadin3 [17]

Answer:
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Explanation:
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Glad I could help! :)

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3 years ago

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1 year ago

Janet is painting her shed. She buys some gallon-sized paint cans that cost $15 each and 2 quart-sized paint cans that cost $4 e

blondinia [14]

1 gallon cost $15

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3 years ago

Which of the following describes a situation in which the total distance a baseball player travels is zero meters from his start

ipn [44]

The first one
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3 years ago

The average life of a certain type of small motor is 10 years with a standard deviation of 2 years. The manufacturer replaces fr

taurus [48]

Answer:

A guarantee of 6.24 years should be offered.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 10, \sigma = 2$