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Darya [45]
3 years ago
14

73 = −6(k − 7) + 6(k + 5)

Mathematics
2 answers:
Hatshy [7]3 years ago
5 0

Answer:

7

3

=

7

2

Step-by-step explanation:

7

3

=

−

6

(

−

7

)

+

6

(

+

5

)

73={\color{#c92786}{-6(k-7)}}+6(k+5)

73=−6(k−7)+6(k+5)

7

3

=

−

6

+

4

2

+

6

(

+

5

)7

3

=

−

6

+

4

2

+

6

(

+

5

)

73=-6k+42+{\color{#c92786}{6(k+5)}}

73=−6k+42+6(k+5)

7

3

=

−

6

+

4

2

+

6

+

3

0

7

3

=

−

6

+

4

2

+

6

+

3

0

73=-6k+{\color{#c92786}{42}}+6k+{\color{#c92786}{30}}

73=−6k+42+6k+30

7

3

=

−

6

+

7

2

+

6

7

3

=

−

6

+

7

2

+

6

73=72

73=−6k+72+6k

7

3

=

7

2

alexandr402 [8]3 years ago
3 0

Answer: 7

3

=

7

2

Step-by-step explanation: Mark me brain and 5 stars and a thank you

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horsena [70]
Given the table showing the distance Randy drove on one day of her vacation as follows:

\begin{tabular}
{|c|c|c|c|c|c|}
Time (h)&1&2&3&4&5\\[1ex]
Distance (mi)&55&110&165&220&275
\end{tabular}

The rate at which she travels is given by

rate= \frac{distance}{time}  \\  \\ = \frac{55}{1} =55mi/h

If Randy has driven for one more hour at the same rate, the number of hours she must have droven is 6 hrs and the total distance is given by

distance = 55 x 6 = 330 miles.
4 0
3 years ago
Can someone pls help me :)
Diano4ka-milaya [45]

Answer: c

Step-by-step explanation:

If the population triples every three hours, you would multiply three by the number of one hour to the power of three, making three hours. This function would triple it every three hours.

4 0
3 years ago
Solve y
Ksivusya [100]

The value of y in -3 = 7\left(y-\dfrac97\right) is 6/7

<h3>How to solve for y?</h3>

The equation is given as:

-3 = 7\left(y-\dfrac97\right)

Open the bracket

-3 = 7y - 9

Add 9 to both sides of the equation

7y = 6

Divide both sides by 7

y= 6/7

Hence, the value of y in -3 = 7\left(y-\dfrac97\right) is 6/7

Read more about equations at:

brainly.com/question/2972832

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<u>Complete question</u>

Solve for y

-3 = 7\left(y-\dfrac97\right)

5 0
2 years ago
20. What do you think would happen to the variability (standard deviation) of the distribution of sample proportions if the samp
Naya [18.7K]

Answer:

Step-by-step explanation:

Sample proportion p is the proportion of favourable numbers to total number in the sample

By central limit theorem and also approximation of binomial to normal , we have sample proportion for large number of samples will be normal

with mean = sample proportion

and std deviation = \sqrt{\frac{pq}{n} }

Thus we find standard deviation of proportion sample is inversely proportional to the square of the sample size n.

It follows automatically that as sample size increases std deviation decreases.

Here from 80 sample size was made to 200

So std deviation would decrease automatically

4 0
3 years ago
Kay added 253 + 14 and got a sum of 393. What did she do wrong? Check all that apply.
SashulF [63]

Answer:

She did not correctly add up the numbers

Step-by-step explanation:

253 + 14 = 267

3 0
3 years ago
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