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RoseWind [281]
3 years ago
10

What is the value of x?

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
7 0
The outside angles of a polygon equal 360 degrees

total of the 3 known angles: 140 + 34 + 56 = 230
 so x = 360 - 230
x = 130 degrees

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There are 3 times as many pears are oranges. If a group of children receive 5 oranges each,there will be no left over.If the sam
lozanna [386]

There are 15 oranges

<em><u>Solution:</u></em>

Let "x" be the number of oranges

Let "y" be the number of pears

Let "c" be the number of children

<em><u>There are 3 times as many pears are oranges</u></em>

Number of pears = 3 times the number of oranges

y = 3x -------- eqn 1

<u><em>If a group of children receive 5 oranges each, there will be no left over</em></u>

So, "c" children receives 5 oranges each, there will be no left over

number of oranges = 5(number of children)

x = 5c ------- eqn 2

<em><u>If the same group of children receive 8 oranges each, there will be 21 pears left over</u></em>

number of pears = 8 oranges(number of children) + 21

y = 8c + 21

<em><u>Substitute eqn 1</u></em>

3x = 8c + 21 ---- eqn 3

<em><u>Substitute eqn 2</u></em>

3(5c) = 8c + 21

15c - 8c = 21

7c = 21

c = 3

<em><u>Substitute c = 3 in eqn 2</u></em>

x = 5(3)

x = 15

Thus there are 15 oranges

6 0
3 years ago
Read 2 more answers
helpp meeeeeeeeee (08.06 MC)Consider the following dot plot. Of the following statements, which two characteristics of this dot
jekas [21]

Answer:

D) The data are skewed and there are outliers.

Step-by-step explanation:

They don’t have the same mean (8) and median (9).

The peak is not equal to the median.

The data is not symmetrical.

That just leaves D, which is correct.  The data is skewed to the right and has outliers at 0.

6 0
4 years ago
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A wedding photographer and their assistant work together to photograph weddings. The rates are : 50 dollar sitting fee, plus 45
nordsb [41]

Answer:

I belive 1,425

Step-by-step explanation:

8 0
3 years ago
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A health department spokesman speaking on a local radio station has advocated that parents download a particular app on their ph
maria [59]

Answer:

Option E is correct.

There seems to be a relationship between the app and preventing the spread of daycare illness.

Step-by-step explanation:

The study was carried out on a sample size of 1200 randomly selected parents and it was discovered that children of parents who downloaded the app, on average, had 10 fewer cases of daycare-related illness during the study period than those whose parents did not download the app.

Examining the options one at a time

a. Because downloading the app seems to decrease child illness, the app should be effective for decreasing child neglect as well.

The study showed that downloading the app seemed to truly decrease daycare-related illnesses in children, but it does not mention anything about child neglect. Hence, this is not a correct conclusion for the study.

b. Downloading the app will cause daycare workers to not spread germs.

The study did not in any way study how the app works, whether it prevents daycare workers to not spread germs, so, this conclusion seems like jumping the gun. It isn't an accurate conclusion of what the study did.

c. The study was an experiment rather than an observational study.

The study was actually more of an observational study. An observational study involves the researchers taking notes and recording the effects of a particular variable or lack of thereof, without interfering with the study.

d. The sample size of the study was too low to determine a result.

A sample size of about 1200 is a large enough sample for the sample characteristics to reflect the population characteristics. So, this statement too isn't true.

e. There seems to be a relationship between the app and preventing the spread of daycare illness.

Based on this information given, it is evident that the results of this study shows a relationship between the app. It shows a significant decrease in daycare-related illnesses in children of parents who downloaded the app. Hence, the app must have something that reduces the chances of a daycare-related illness in the children of parents who downloaded the app.

Hope this Helps!!!

6 0
3 years ago
If n=5, what is the value of x in 9n-(3+n)=x
Sav [38]
9(5) - (3+5) = x
45 - 8 = x
8 0
3 years ago
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