3 years ago

Matching fractions and decimals

1 answer:

6 0

1). 2/5 = 0.4
2). 0.65 = 13/20
3). 18/25 = 0.72
4). 9/20 = 0.45
5). 0.5 = 1/2
6). 0.20 = 1/5
7). 3/25 = 0.12
8). 3/4 = 0.75
9). 0.6 = 3/5
** I can't see #10, but I can do it for you if you comment it to me.

I hope this helps you.

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Answer:

Reject H0 since test statistic <-2.492

Step-by-step explanation:

Given that the American Water Works Association reports that the per capita water use in a single-family home is 74 gallons per day.

n = 25

x bar = 69

s= 8.3

std error = s/sqrt n = $\frac{8.3}{5} \\=1.66$

H0: $\bar x = 74$

Ha: $\bar x$

(Left tailed test at 5% significance level)

a) Reject H0 if t $\leq$ -2.492

b) Test statistic = mean difference/std error

= $\frac{69-74}{1.66} \\=-3.012\\$

=-3.01

df =24

c) Reject H0

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Answer is A. 6
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12 = 7+5 Hope this helps:)

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Is 6 squared plus 9 sqaured rational?

iris [78.8K]

Simplify the expression

6² + 9²

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117 is a rational number ∴ 6² plus 9² is rational

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During elementary school, Derek received a weekly allowance of $10 for completing all of his chores. These days he receives 50%

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Dereks weekly allowance is now $15. 50% of 10 is 5.

10+5=15

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