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mel-nik [20]
3 years ago
5

The ferry between an island and mainland makes on round trip a day on Monday the ferry carried 83 people to the island and retur

ned 114 compare the population of the island at the beginning of the day to the day the ferry returned
Mathematics
2 answers:
AfilCa [17]3 years ago
4 0
Population of the island at the day to day the ferry returned.
ella [17]3 years ago
4 0
When the day began, it should be x+83 but when the ferry leaves, the expression is x+83-114. Which becomes x-31 when x represents the amount of people already on the island.
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In a recent​ poll, 44​% of survey respondents said​ that, if they only had one​ child, they would prefer the child to be a boy.
viva [34]

Answer:

a) The probability that 71 of 150 will prefer boy child is 71/150 or 0.47

b) The result contradicts the poll actual percentage is 47.33% which is 3.33% more than the poll predicted

Step-by-step explanation:

If 71 out of 150 prefer boy child

The probability that the 71 will prefer boy child is

= 71/150

The actual percentage is

(71/150)*100%

= 47.33%

This contradicts the poll as this is more than the poll predicted. That means Less than 71 of 150 actually preferred boy child.

5 0
3 years ago
Helppp plsssss someone D:
zimovet [89]
〽Hola User_______________

⭐Here is Your Answer..!!!

______________________

↪Cartesian Coordinates of the system....!!

↪X = rcos⊙ and Y = rsin⊙

↪since here Radius (r) = 10 units and Theta (⊙) = 225°

↪there fore substituting we get as ..

↪X = 10 ( cos 225° ) = 10 * -1/ root 2 = -7.071

↪Y = 10 ( sin 225° ) = 10 * -1/root2 = = -7.071

↪the cordinates are as follows

↪(x,y) = (-7.071, -7.071 )
4 0
3 years ago
What is the simplified form of x+3/4+x+2/4
Savatey [412]
Hey there! :D

Since all the terms are being added together, and there is a common denominator with the fractions, we can just add them.

x+x= 2x  3/4+2/4= 5/4

2x+5/4

2x+1.25<== simplest form

I hope this helps!
~kaikers
7 0
3 years ago
Read 2 more answers
8x = 2y + 5 3x = y + 7 Solve the system of equations by substitution.
jasenka [17]
<span>3x = y + 7
</span><span> y =3x-7
</span>
<span>8x = 2y + 5
</span><span>8x = 2(3x-7) + 5
8x=6x-14+5
8x-6x=-9
2x=-9
x=-4.5

</span><span>8x = 2y + 5
</span>8(4.5)=2y+5
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y=15.5
8 0
3 years ago
5 positive integers are arranged in ascending order, as follows:
Helga [31]
The answer is: 10.

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4 0
2 years ago
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