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KiRa [710]
3 years ago
10

60 sixth graders are going to the social. 240 sixth graders are NOT going to the social. What is the ratio (simplest form) of th

e sixth graders NOT going to the social to sixth graders going to the social ?
Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
5 0

Answer:

240 to 60 or in simpler form 1 and 4

Step-by-step explanation:

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How do you find x in this question?
ivanzaharov [21]

Answer:

  x = 70°

Step-by-step explanation:

The relevant relations are ...

  • base angles of an isosceles triangle are congruent
  • consecutive interior angles where parallel lines meet a transversal are supplementary

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Triangle OBQ is isosceles, so angle OQB = 40°. Triangle OPQ is isosceles, so angle OQP is x. The sum of angles OQB and OQP is angle BQP, which is supplementary to angle OPQ. That is, ...

  (40° +x) +x = 180°

  2x = 140° . . . . . . subtract 40°

  x = 70° . . . . . . divide by 2

_____

There are many ways to find x. The one shown here is just one of them. In general, right triangles, isosceles triangles, symmetry, inscribed angles can all be used to write relations involving the known angles and x.

7 0
1 year ago
1. what value of x will make the equation below true 1/2(6x-10)+10=5x-13
soldi70 [24.7K]

Answer:

x = 9

Step-by-step explanation:

1/2(6x - 10) + 10 = 5x - 13

3x - 5 + 10 = 5x - 13

3x + 5 = 5x - 13

3x + 18 = 5x

18 = 2x

x = 9

3 0
3 years ago
Read 2 more answers
A cereal manufacturer is concerned that the boxes of cereal not be under filled or overfilled. Each box of cereal is supposed to
Vaselesa [24]

Answer:

We conclude that the population average weight of a cereal box is equal to 13 ounces.

Step-by-step explanation:

We are given that a cereal manufacturer is concerned that the boxes of cereal not be under filled or overfilled.

A random sample of 36 boxes is tested. The sample average weight is 12.85 ounces and the sample standard deviation is 0.75 ounces.

<u><em /></u>

<u><em>Let </em></u>\mu<u><em> = population average weight of a cereal box</em></u>

So, Null Hypothesis, H_0 : \mu = 13 ounces    {means that the population average weight of a cereal box is equal to 13 ounces}

Alternate Hypothesis, H_A : \mu \neq 13 ounces    {means that the population average weight of a cereal box differs from 13 ounces}

The test statistics that will be used here is <u>One-sample t test statistics</u> as we don't know about population standard deviation;

                                  T.S.  = \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample average weight = 12.85 ounces

            \sigma = sample standard deviation = 0.75 ounces

            n = sample of boxes = 36

So, <u><em>test statistics</em></u>  =  \frac{12.85-13}{\frac{0.75}{\sqrt{36} } }  ~ t_3_5

                               =  -1.20

The value of the test statistics is -1.20.

Since, in the question we are not given with the level of significance so we assume it to be 5%. Now at 5% significance level, <u>the t table gives critical values between -2.03 and 2.03 at 35 degree of freedom for two-tailed test</u>.

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

Therefore, we conclude that the population average weight of a cereal box is equal to 13 ounces.

3 0
3 years ago
Explain the steps in calculating the mean absolute deviation of a set of data.
Anni [7]

Answer:


Step-by-step explanation:

Step 1: Calculate the mean.

Step 2: Calculate how far away each data point is from the mean using positive distances. These are called absolute deviations.

Step 3: Add those deviations together.

Step 4: Divide the sum by the number of data points.

7 0
3 years ago
Read 2 more answers
Help me pls..............
Vladimir79 [104]

Answer:

y=-1,0,1,2,3

Step-by-step explanation:

y=1x+1

y=1(-2)+1

y=-1

y=1(-1)+1

y=0

y=1(0)+1

y=1

y=1(1)+1

y=2

y=1(2)+1

y=3

5 0
3 years ago
Read 2 more answers
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