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Kamila [148]
3 years ago
9

Which fraction is equivalent to 38%?

Mathematics
2 answers:
SSSSS [86.1K]3 years ago
8 0

Answer:

C: 19 over 50

Step-by-step explanation:

.3*50=15

.08*50=4

15+4=19

.38*50=19

19/50=.38

Mnenie [13.5K]3 years ago
5 0

Answer:

C: 19 over 50

Step-by-step explanation:

To turn a fraction into a decimal, you divide the numerator (top number) by the denominator (bottom number). 19 divided by 50 is 38%.

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A process where one person can be put in the place of another, if they both are equally skilled.
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The movie starts at 7:20 p.m. It will run for 1 hour and 40 minutes. At what time will the movie be over?​
Ganezh [65]

Answer:9:00 pm

Step-by-step explanation:

Start time: 7:20pm

Duration of movie: 1 hour 40minutes

End time= 7:20 + 1:40

= 8:60 = 9:00pm

60 minutes make 1 hour.

3 0
3 years ago
Read 2 more answers
Suppose a consumer group suspects that the proportion of households that have three cell phones NOT known to be 30%. A cell phon
leva [86]

Answer:

We conclude that the actual percentage of households is equal to 30%.

Step-by-step explanation:

We are given that a consumer group suspects that the proportion of households that have three cell phones NOT known to be 30%.

Their marketing people survey 150 households with the result that 43 of the households have three cell phones.

Let p = <u><em>proportion of households that have three cell phones NOT known.</em></u>

So, Null Hypothesis, H_0 : p = 30%      {means that the actual percentage of households is equal to 30%}

Alternate Hypothesis, H_A : p \neq 30%     {means that the actual percentage of households different from 30%}

The test statistics that would be used here <u>One-sample z-test for proportions;</u>

                                T.S. =  \frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion of households having three cell phones = \frac{43}{150} = 0.29

           n = sample of households = 150

So, <u><em>the test statistics</em></u>  =  \frac{0.29-0.30}{\sqrt{\frac{0.30(1-0.30)}{150} } }  

                                     =  -0.27

The value of z test statistic is -0.27.

<u>Also, P-value of the test statistics is given by;</u>

              P-value = P(Z < -0.27) = 1 - P(Z \leq 0.27)

                            = 1 - 0.6064 = <u>0.3936</u>

<u>Now, at 1% significance level the z table gives critical value of -2.58 and 2.58 for two-tailed test.</u>

Since our test statistic lies within the range of critical values of z, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which <em><u>we fail to reject our null hypothesis</u></em>.

Therefore, we conclude that the actual percentage of households is equal to 30%.

4 0
3 years ago
A coffee shop sells regular coffee in three sizes. The table shows the sizes of each regular coffee sold throughout the day. Wri
kenny6666 [7]

Answer:

c) bajo: $1.62; mediano: $1.80; grande: $2.03

Step-by-step explanation:

Insert numbers from the table into a linear equation (ignore time column) and use Cramer's Rule.

55x+53y+54z=299.12

17x+22y+25z=117.89

30x+23y+29z=148.97

x, bajo = 1.62

y, mediano = 1.8

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3 years ago
Find and interpret the slope and y-intercept of y=40x+30
rjkz [21]
The slope is 40 and the y-intercept is 30. Umm... What exactly are you asking for? I'm a bit confused about this question.
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