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3 years ago

Which is a correct first step for solving this equation? 4x=7+3(2x−5)

Mathematics

2 answers:

Sholpan [36]3 years ago

6 0

The first step you would need to complete would be multiplying everything within the parentheses by 3.<span />

jeka943 years ago

3 0

Doing (2x-5) first is what

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Step-by-step explanation:

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3 years ago

Steel Factory Workers Ages

igor_vitrenko [27]

Solution: We are given the population mean $=42$

Now, in order to find which shift's mean is closest to population mean, we will find the mean of each shift.

The mean of shift 1 is:

$Mean=\frac{18+25+56+42+29+38+54+47+35+30}{10}=\frac{374}{10}=37.4$

The mean of shift 2 is:

$Mean=\frac{23+19+50+49+67+34+30+59+40+33
}{10}=\frac{404}{10}=40.4$

The mean of shift 3 is:

$Mean=\frac{19+22+24+40+45+29+33+29+39+59 }{10}=\frac{339}{10}=33.9$

The mean of shift 4 is:

$Mean=\frac{21+23+25+40+35+19+70+40+22+23 }{10}=\frac{318}{10}=31.8$

We clearly see the mean of shift 2 is close to the population mean. Hence the option B) Shift 2 is correct.

7 0

3 years ago

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What is 35% of 107<br>0.35(10) =

NISA [10]

Answer:

37.45percent

our output is 100

we represent unknown value with x

first step Above , 100 equals 100%

similarity x equals 35 percent

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3 years ago