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3 years ago

Solve or answer the item

Mathematics

1 answer:

Arturiano [62]3 years ago

7 0

The answer is 148. the proportion is already set up, so all you have to do is to cross multiply and divide.

259 7 7x 1036
------ = ----- = ------- = --------- = 148
k 4 7 7

(Hope this helps)

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-2(2x+3)=-(x+1)-2 whats x

AysviL [449]

Answer:

x=-1

Step-by-step explanation:

4 0

4 years ago

For the straight line defined by the points (3,57) and (5,87), determine the slope ( m ) and y-intercept ( ???? ). Do not round

Sphinxa [80]

Answer: The slope of the line is 15 and y-intercept is 12.

Step-by-step explanation: We are given to find the slope and y-intercept of the straight line defined by the points (3, 57) and (5, 87).

We know that

the slope of a line passing through the points (3, 57) and (5, 87) is given by

$m=\dfrac{87-57}{5-3}=\dfrac{30}{2}=15.$

Since the straight line passes through the point (3, 57), so its equation will be

$y-57=m(x-3)\\\\\Rightarrow y-57=15(x-3)\\\\\Rightarrow y-57=15x-45\\\\\Rightarrow y=15x-45+57\\\\\Rightarrow y=15x+12.$

So, the required equation of the straight line is $y=15x+12.$

Thus, the slope of the line is 15 and y-intercept is 12.

4 0

3 years ago

Judah collects toy cars.He buys his cars in packs of 12,18 and 24.He wants to arrange them in rows but all the rows have to be a

polet [3.4K]

For this case what we can do first is to take an average of the number of cars.
We have then:
P = (12 + 18 + 24) / (3)
P = 18
In other words, you can organize your cars in rows of 3 where each row will have 18 cars.
Answer:
three rows, 18 cars per row.

4 0

3 years ago

2(3 + x) – x(7 + x)<br> if x = 3<br> Pls someone answer and work

diamong [38]

Answer:

the answer would be -18

Step-by-step explanation:

3+3=6 2×6=12. 7+3=10 3×10=30 12-30= -18

7 0

3 years ago

Read 2 more answers

Does the sample provide strong evidence that the mean weight of the bags is lower than the 35.6 grams listed on the package? Gro

kirill115 [55]

Answer:

As probability of that happening is very small; Yes, 33.6 is less than 35.6 grams because it provide strong evidence that the mean weight of the bags is lower than the 35.6 grams listed on the package.

Step-by-step explanation:

For a normal distribution Z-score

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

Given that :

the mean ( $\mu$ ) = 35.6

standard deviation ( $\sigma$ ) = 5.2

sample size (n) = 35

standard error: $\sigma_x = \frac{\sigma}{\sqrt{n}}$

$\sigma_x = \frac{5.2}{\sqrt{35}}$

$\sigma_x = 0.879$

The probability that a random sample of 35 bags has a mean weight of 33.6 grams or less is :

P(X<33.6) = P(Z < - 2.28)

= 0.0114

Conclusion:

As probability of the happening is very small; Yes, 33.6 is less than 35.6 grams because it provide strong evidence that the mean weight of the bags is lower than the 35.6 grams listed on the package.

7 0

4 years ago