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3 years ago

What is the solution of 6(k - 2) = 3k - 6?

Mathematics

2 answers:

Lelechka [254]3 years ago

6 0

Answer:

k=2

Step-by-step explanation:

Open parenthesis:

6k-12=3k-6

Put all like terms on one side:

6k-3k=-6+12

Simplify:

3k=6

k=2

<em>~Stay golden~ :)</em>

Vanyuwa [196]3 years ago

3 0

K = 2

Apparently my answer wasn't long enough so here is some filler.

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The temperature at 8:00 am was (-8) degrees today. At 8:00 pm, the temperature was 3 degrees. What is the integer that represent

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3 years ago

Shana is climbing a mountain at a constant pace. She rises in elevation by 17.5 feet per minute. After hiking for 30 minutes, a

Mnenie [13.5K]

Answer:

The linear equation for Shana's elevation is $E = 17.5\cdot t+1640$ .

Step-by-step explanation:

According to the statement, we find that Shana is climbing at constant rate in time and height as a function of time can be represented by linear function:

$E = h_{o}+\dot h\cdot t$ (Eq. 1)

Where:

$h_{o}$ - Initial height above sea level, measured in feet.

$E$ - Elevation above sea level, measured in feet.

$\dot h$ - Climbing rate, measured in feet per minute.

$t$ - Time, measured in minutes.

If we know that $E = 2165\,ft$ , $\dot h = 17.5\,\frac{ft}{min}$ and $t = 30\,s$ . the initial height above sea level is:

$h_{o} = E - \dot h\cdot t$

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3 years ago

A researcher is interested in whether there is a significant difference between the mean age of marriage across three racial gro

Ivenika [448]

Answer:

The P-value is < significance value ( 0.05 ) hence we reject the Null hypothesis ( i.e. There is an association between the race and average age at marriage )

Step-by-step explanation:

Conducting an F-test to determine association between race and average age at marriage

step 1 : State the hypothesis

H0 : ц1 = ц2 = ц3

Ha : ц1 ≠ ц2 ≠ ц3

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df within = 1160 - 2 = 1158

SS within = 36.87*1158 = 42695.46

Therefore the MS between = 629.19 / 2 = 314.60

The F-ratio = 314.59 / 36.87 = 8.53

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