A small town decided to get into the holiday spirit during Halloween. Every person in
town chose to wear orange or black for Halloween. The ratio of those wearing orange to
those wearing black is 2 to 3. If the town's population is 310 and everyone wore orange
or black, how many people wore black?
A 155 people
B 165 people
C 186 people
D 180 people

Answer:

530.66 m²

Step-by-step explanation:

Area of circle= π×radius²

So the radius is 26/2= 13

13×13=169

So 3.14×169 would be the area

3.14×169= 530.66

(And if you have to round to the nearest tenth it would be 530.7)

Hope this helps :)

Answer:

6.3

Step-by-step explanation:

.....................

Answer:

6.333 repeating or 19/3

Step-by-step explanation:

add them up to get 57

divide by 9

Answer:

(3,2)

Step-by-step explanation:

5x+2y= 19

4x - 3y = 6

I will use elimination

Multiply the first equation by 4

20x +8y = 76

Multiply the second equation by -5

-20x +15y = -30

Add them together to eliminate x

20x +8y = 76

-20x +15y = -30

---------------------------

       23y = 46

Divide by 23

23y/23 = 46/23

y =2

Now find x

5x+2y =19

Substitute y=2

5x+2(2) =19

5x+4 = 19

Subtract 4 from each side

5x +4-4 =19-4

5x= 15

Divide by 5

5x/5 = 15/5

x=3

The solution is

(3,2)

Answer:

Since it is the case of independent the answer will be 6/22

Answer:

10.82

Step-by-step explanation:

6^2+9^2=x

36+81=117

Square root of 117 is 10.82

The value of the given side x  in the given circle is 10.82.

We have given that,

If necessary, round your answer to the nearest tenth. O is the center of the circle. The figure is not drawn to scale.

[tex]side^2+side^2=hypotenous^2[/tex]

6^2+9^2=x^2

36+81=117

117=x^2

taking square root on both sides.

The Square root of 117 is 10.82.

Therefore the square root of the 117 is 10.82.

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Answer: 14 and 15

Step-by-step explanation:

The square root of 200 is 14.1421356237.

14< 14.1421356237 < 15

Answer:

8.4 is the answer and the circumference is 26.4

I think it's 5.2 feet :))))

it’s A thank me later

The most reasonable prediction of the height of fifth-grade students is 55.

Mean is an average of values of a set. Arithmetic mean, geometric mean and harmonic mean are the type of mean.

Given that,

Height of 10 students in 5th grade are 57, 54, 59, 53, 56, 54, 51, 56, 54, 56.

To determine the height of 5th grade students,

find average of all the data,

average = total height of students / total number of students

              = (57 + 54 + 59 + 53 + 56 + 54 + 51 + 56 + 54 + 56) / 10

              = 550 / 10

              = 55

The most reasonable prediction of the height of fifth-grade students is 55.

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Answer:

C

Step-by-step explanation:

Just did the test

Answer:

yes it is a right triangle

Step-by-step explanation:

i promise u im correct !

Answer:

A

Step-by-step explanation:

10% raise in $20 is $2, so its only $2 more, so each hour she would earn $2 more.

Option D is the answer. $200

Answer:

Company A:

150 x 3 = $450

6/100 x 150 = $9

450 + 9 = $459

Company B:

3.10 x 150 = 465

4/100 x 150 = 6

465 + 6 = $471

Company C:

3.20 x 150 = $480

Now the order (Answer):

A(459), B(471), C(480)

Answer:

B: Line AC

Step-by-step explanation:

Looking at the I age shown, the only line that passes through point A is clearly line AC.

Thus, correct option is B

Answer: Negative

Step-by-step explanation: Since the values of A and B are both negative (because they are below 0), adding them together will also make the sum negative.

Answer:

3/4

Step-by-step explanation:

y = 3/4x + (-2)

Answer:

1)

a. 5.29 cm

b. 17.8 m

c. 9.75 in

d. 12 cm

e. 8.31 ft

f. 25.46 m

Step-by-step explanation:

Have a good day :)

Answer:

cos(A) = 12/13

Step-by-step explanation:

There are several ways to remember trigonometric functions, but my personal favorite is:

SOH - CAH - TOA

Where Sin(angle) = Opposite/Hypotenuse

Cos(angle) = Adjacent/Hypotenuse

and Tan(angle) = Opposite/Adjacent

The opposite is the side of a triangle that does not form part of the angle. E.g. for angle A the opposite is 5, for angle B the opposite is 12.

The hypotenuse is the longest side of the triangle, or the opposite in relation to the right angle (signified here by the little red box in the bottom left).

The adjacent is the side that isn't the hypotenuse, but is still next to a given angle. E.g. the adjacent for angle A is 12, and the adjacent for angle B is 5.

The cosine of angle A is the adjacent of angle A divided by the hypotenuse. The side adjacent to A is 12, and the hypotenuse is 13. Therefore, the cosine of angle A is 12/13.

Answer:

its a right triangle

Step-by-step explanation:

because it has at least one right angle

Answer:

a right because it has kind of a 90 angle

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

70 x 4 = 280, 2 dozen = 24, 280 ÷ 24 = 11.6666667 then round that so u have 12.

Answer:

3cm

Step-by-step explanation:

5 + 5 +2x = 16

subtract 5 twice

2x = 6

divide both sides by 2

x = 3

Answer:

3

Step-by-step explanation:

5+5= 10  

16-10= 6

6/2= 3

hope it helps

Answer:

13. 1/3

14. 1/20

15. 9/20

16. 9/200

17. 253/25

18. 39/10

Answer:

48 pens

Step-by-step explanation:

6 times 8 is 48,

sam ordered 48 pens

Step-by-step explanation:

B (-8,-6)

C (-10, -6)

D (-10,2)

E (-8,2)

Answer:

The selection of r objects out of n is done in

many ways.

The total number of selections 10 that we can make from 6+7=13 students is  

thus, the sample space of the experiment is 286

A.  

"The probability that a randomly chosen team includes all 6 girls in the class."

total number of group of 10 which include all girls is C(7, 4), because the girls are fixed, and the remaining 4 is to be completed from the 7 boys, which can be done in C(7, 4) many ways.

P(all 6 girls chosen)=35/286=0.12

B.

"The probability that a randomly chosen team has 3 girls and 7 boys."

with the same logic as in A, the number of groups were all 7 boys are in, is  

so the probability is 20/286=0.07

C.

"The probability that a randomly chosen team has either 4 or 6 boys."

case 1: the team has 4 boys and 6 girls

this was already calculated in part A, it is 0.12.

case 2, the team has 6 boys and 4 girls.

there C(7, 6)*C(6, 4) ,many ways of doing this, because any selection of the boys which can be done in C(7, 6) ways, can be combined with any selection of the girls.  

the probability is 105/286=0.367

since  case 1 and case 2 are disjoint, that is either one or the other happen, then we add the probabilities:

0.12+0.367=0.487 (approximately = 0.49)

D.

"The probability that a randomly chosen team has 5 girls and 5 boys."

selecting 5 boys and 5 girls can be done in  

many ways,

so the probability is 126/286=0.44

Mark brainliest