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Sliva [168]
3 years ago
11

Find two consecutive odd integers such that seven times the first equals five times the second.

Mathematics
1 answer:
fredd [130]3 years ago
8 0

Answer:

Odd integers are always one more that an even integer:

1st: 2n+1

2nd: 2n+3

Step-by-step explanation:

14n+7 = 10n+15

4n = 8

n = 2

------------

1st: 2n+1 = 5

2nd: 2n+3 = 7

7x=5*(x+2)

7x=5x+10

7x-5x=10

2x=10

x=5

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X and y<br> are supplementary angles. y<br> measures 142.<br> What is the measure of x?
Nimfa-mama [501]

Answer:

38°

Step-by-step explanation:

y = 142°

x + y = 180°{ being supplementary angles }

x + 142° = 180°

x = 180° - 142°

x = 38°

Hope it will help :)

6 0
3 years ago
4.8 Twitter users and news, Part I: A poll conducted in 2013 found that 55% of U.S. adult Twitter users get at least some news o
TiliK225 [7]

Answer: Required 99% confidence interval  : (48.30%, 61.7%)

Step-by-step explanation:

Confidence interval for PROPORTION:  p\pm z^* \times S.E., where p = sample proportion , z* = two-tailed critical z-value  and S.E. = standard error.

As per given: p=55%

Critical z-value for 99% confidence = 2.576

S.E. = 2.6%

Then, required confidence interval :

55\% \pm (2.576)\times 2.6\%\\\\\approx55\% \pm6.70\%\\\\=(55\%-6.70\%,\ 55\%+6.70\%)\\\\=(48.30\%,\ 61.7\%)

Required 99% confidence interval  : (48.30%, 61.7%)

7 0
3 years ago
Solve for w. Give an exact answer in simplified form. 53w+13 &lt; 56w + 16
zepelin [54]

Answer:

w > -1

Step-by-step explanation:

53w + 13 < 56w + 16

Get w to one side.

Subtract 53w from both sides.

13 < 3w + 16

Get 3w by itself.

Subtract 16 from both sides.

-3 < 3w

Divide both sides by 3 to solve for w.

-1 < w

or

w > -1

I hope this helps!

4 0
3 years ago
I dont understand this​
vladimir1956 [14]
N = 40
Dmdndndkfkdkdkxxkkddkfkfkfkfkfkf
4 0
3 years ago
Evaluate the expression.
Alekssandra [29.7K]

Step-by-step explanation:

9.(12/3)²

9.(144/9)

[The 9 in numerator and the 9 in denominator can be cancelled]

144

the answer is 144

Please mark me as brainliest

4 0
2 years ago
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