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lukranit [14]
3 years ago
13

the length of hetty's patio is 4 meters greater than three times the width . the perimeter of the patio is 72 meters.what are th

e dimensions of hettys patio? algebra
Mathematics
2 answers:
alexgriva [62]3 years ago
6 0
2L+2W=72
L=3W+4
2(3w+4)+2W=72
6w+8+2W=72
8+8W=72
-8          -8
8W=64
W=8  L=28
Anastasy [175]3 years ago
6 0
3x + 4 where x represents the width

P = 72 m

trial and error:

1.   3(20) + 4 = 64

2.  3(23) + 4 = 73

3.  3(22.67) + 4 = 72.01 --- round answer to nearest decimal place
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Mr. Moore planted a tree in his backyard. His tree grew 3 1/3 feet over five years. if his tree grew at the same rate each year,
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D. 2/3 per year.

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4 0
3 years ago
Vicky grew 15 flowers with 3 seed packets. How many seed packets does Vicky need to have a total of 20 flowers in her garden?
asambeis [7]

Answer:

definitely 4

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7 0
3 years ago
HELP PLEASE <br><br> Answer choices <br><br> A). 12<br><br> B). 2<br><br> C). 6<br><br> D). 25/3
I am Lyosha [343]
That is 6 I believe

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4 0
3 years ago
Austin checks the temperature at 10:00 p.m. He notices if the temperature
Alecsey [184]

Answer:

A. t - 5 < 26°

Step-by-step explanation:

Record low temperature for that date = 26°

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Thus, this is said would mean the record low temperature would be breaking at this point, meaning the new temperature low recorded will be less than 26°.

In mathematical expression, this is expressed as;

t - 5 < 26°

4 0
3 years ago
In a sample of 400 voters, 360 indicated they favor the incumbent governor. The 95% confidence interval of voters not favoring t
sveticcg [70]

The 95% confidence interval of voters not favoring the incumbent is (0.0706, 0.1294).

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= 0.1

We use normal approximation, for this, we check that both np and n(1-p) >5.

Since n*p = 40 > 5 and n*(1-p) = 360 > 5, we can take binomial random variable as normally distributed, with mean = p = 0.1 and standard deviation  = root( p * (1-p) /n )

= 0.015

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Margin of Error (ME) =  z x SD = 0.0294

95% confidence interval is given by Sample Mean +/- (Margin of Error)

0.1 +/- 0.0294 = (0.0706 , 0.1294)

Learn more about Margin of Error here brainly.com/question/15691460

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5 0
2 years ago
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