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Oksana_A [137]
3 years ago
5

How to Solve: -5% < 100

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
8 0

Answhver:khglujlihluf

Step-by-step explanation:

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The ratio of teachers to students at Priory School is 2:27
Rzqust [24]

Answer:

609

Step-by-step explanation:

ratio of teachers to students at Priory School =2:27

Let X= total number of both the students and the teacher

Ratio of teacher=( 2/29)X

Ratio of student is (27/29 )X

But total number of teacher = 42

2/29 ×X =42

2X= 42×29

2X=1218

X= 609

Hence, school's total population is 609

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3 years ago
The sales tax for an item was $28.80 and it cost $320 before tax. What is the answer ?
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It would cost 348.80
4 0
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What is 4/7 as a decimal
scoundrel [369]

Answer:

0.57142858 is the answer hope this helped



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3 years ago
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Find the fifth term in the arithmetic sequence that begins at 1.5 and has a common difference of 6.6.
astraxan [27]
I think it's 34.5 (I need more letters so I'm typing this)
4 0
3 years ago
Several years​ ago, 39​% of parents who had children in grades​ K-12 were satisfied with the quality of education the students r
BaLLatris [955]
<h2>Answer with explanation:</h2>

Let p be the population proportion  of parents who had children in grades​ K-12 were satisfied with the quality of education the students receive.

Given : Several years​ ago, 39​% of parents who had children in grades​ K-12 were satisfied with the quality of education the students receive.

Set hypothesis to test :

H_0: p=0.39\\\\H_a :p\neq0.39

Sample size : n= 1055

Sample proportion : \hat{p}=\dfrac{466}{1055}=0.441706161137\approx0.44

Critical value for 95% confidence : z_{\alpha/2}=1.96

Confidence interval : \hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{p(1-p)}{n}}

0.44\pm (1.96)\sqrt{\dfrac{0.39(1-0.39)}{1055}}\\\\0.44\pm0.0299536805135\\\\0.44\pm0.03\\\\=(0.44-0.03, 0.44+0.03)\\\\=(0.41,\ 0.47)

Since , Confidence interval does not contain 0.39.

It means we reject the null hypothesis.

We conclude that 95​% confidence interval represents evidence that​ parents' attitudes toward the quality of education have changed.

8 0
3 years ago
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