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3 years ago

Yesterday, Jack drove 33 and one half

Mathematics

2 answers:

tangare [24]3 years ago

5 0

Answer:

His car runs 26.8 miles per gallon.

Step-by-step explanation:

Divide to get the unit rate:

33.5 mi

------------- = 26.8 mpg

1.25 gal

borishaifa [10]3 years ago

3 0

change each mixed number to an improper fraction

33 1/2 = (2*33 +1)/2 67/2

1 1/4 = (4*1+1)/4 = 5/4

67/2 divided by 5/4

copy dot flip

67/2 * 4/5

268/10

26 8/10

26 4/5 miles per gallon

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What is the probability of getting a number less than 4 and then roiling a 4?

Aleks [24]

well there is -4 which is the oppsite of positive 4 if that what you ment

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2 years ago

An Article a Florida newspaper reported on the topics that teenagers most want to discuss with their parents. The findings, the

Sergio039 [100]

Answer:

The estimate is $P__{hat}} \pm E = 0.37 \pm 0.0348$

Step-by-step explanation:

From the question we are told that

The sample size is n = 522

The sample proportion of students would like to talk about school is $\r p__{hat}} = 0.37$

Given that the confidence level is 90 % then the level of significance can be mathematically evaluated as

$\alpha = 100 - 90$

$\alpha = 10\%$

$\alpha = 0.10$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table, the value is

$Z_{\frac{\alpha }{2} } =Z_{\frac{0.10}{2} } = 1.645$

Generally the margin of error can be mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \sqrt{\frac{\r P_{hat}(1- \r P_{hat} )}{n } }$

=> $E = 1.645 * \sqrt{\frac{0.37 (1- 0.37 )}{522 } }$

=> $E = 0.0348$

Generally the estimate the proportion of all teenagers who want more family discussions about school at 90% confidence level is

$P__{hat}} \pm E$

substituting values

$0.37 \pm 0.0348$

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2 years ago

An expression is shown 342 / 8 What is the quotient expressed as a fraction?

tekilochka [14]

/ also means division so the answer is 42.75

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3 years ago

Can someone please help mee

Andrew [12]

$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \:Domain = [-9, -1]$

$\qquad \tt \rightarrow \:Range = [-1 , 3]$

____________________________________

$\large \tt Solution \: :$

Domain = All possible values of x for which f(x) is defined

[ generally the extension of function in x - direction ]

Range = All possible values of f(x)

[ generally the extension of function in y - direction ]

$\large\textsf{For the given graph : }$

$\qquad \tt \rightarrow \: domain = [ - 9, -1]$

$\qquad \tt \rightarrow \: range= [ -1,3]$

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

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2 years ago

Predict the number of students out of 400 that would pick science as there favorite subject

S_A_V [24]

I would have to say 30%

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2 years ago

​Yesterday, Jack drove 33 and one half

Yesterday, Jack drove 33 and one half