A brother and a sister are in the same math class. There are 9 boys and 8 girls in the class. One boy and one girl are randomly chosen. What is the probability that the brother and sister are chosen? Write your answer as a fraction in simplest form.

The probability is ?

Answer:

$7.20

Step-by-step explanation:

The first step is to convert 1 1/4 to decimal form. 1/4=0.25, which when added to the 1 gives a total weight of 1.25 pounds. Dividing this by the price to find the unit price, you get 9/1.25=$7.20 per pound of turkey. Hope this helps!

Unit price is the price when something is $1, so what you need to do is 9/1.25. The answer is $7.20, so that is the unit rate. I hope this helps.

Answer:

Base: 16 cm

Height: 48 cm

Step-by-step explanation:

Let's call the length of the base b, and the length of the height h. Since the formula for the area of a triangle is bh/2, you can set up the following equations:

[tex]h=3b\\\dfrac{bh}{2}=384\\ \dfrac{b(3b)}{2}=384\\\dfrac{3b^2}{2}=384\\3b^2=768\\b^2=256\\b=16\\h=16\cdot 3=48[/tex]

Hope this helps!

Answer:

BC

Step-by-step explanation:

because it is what it is

Answer:

Since a and b are constant the answer is 6.5

Step-by-step explanation:

g(x) = 2x + 5

g(x) = y

y = 2x + 5

y - 5 = 2x

[tex]\frac{y-5}{2}[/tex] = x

[tex]g^{-1}[/tex](x) = [tex]\frac{x-5}{2}[/tex]

8 = h(1) and h(3) = 26

26 = a(3) + b

a = b

6.5 = 6.5

26 = 6.5(3) + 6.5

26 = 19.5 + 6.5

26 = 26

Answer:

$14.40

Step-by-step explanation:

a. (18) (80%) = (18) (.80) = $14.40 is discount

b. (x)(.80)= discount price

c. 18/80% =$22.50 is regular price

Answer:

$14.40

Step-by-step explanation:

a. (18) (80%) = (18) (.80) = $14.40 is discount

b. (x)(.80)= discount price

c. 18/80% =$22.50 is regular price

Answer:

x= number of girls

y= total

Step-by-step explanation:

y= 1x

y= 1(5)

y= 5 marshmallows

Answer:

It’s graph D

Step-by-step explanation:

I clicked B got it wrong and showed D as answer on edg

Answer:

11x2-y=

Step-by-step explanation:

well it's easy simplifying 10+1=11

Answer:

360 = x+123+ 90

x = 147

Step-by-step explanation:

The three angles form a circle which is 360 degrees

360 = x+123+ 90

Subtract 123 and 90 from each side

360 -123 - 90 = x

147 = x

Answer:

square root of 166, 13, 14

Step-by-step explanation:

Answer:

Each given point will lie within the viewing window, [tex]Xmin=-12[/tex], [tex]Xmax=1[/tex], [tex]Xscl=1[/tex], [tex]Ymin=-8[/tex], [tex]Ymax=6[/tex], [tex]Yscl=1[/tex].

Step-by-step explanation:

The given points are (-11,5),(0,-4),(0,-7).

Here, the minimum values of x is -11 and maximum value of x is 0.

It means [tex]Xmin[/tex] must be less than -11 and [tex]Xmax[/tex] must be greater than 0.  

The minimum values of y is -7 and maximum value of y is 5.

It means [tex]Ymin[/tex] must be less than -7 and [tex]Ymax[/tex] must be greater than 5.  

Therefore, each given point will lie within the viewing window

[tex]Xmin=-12[/tex]

[tex]Xmax=1[/tex]

[tex]Xscl=1[/tex]

[tex]Ymin=-8[/tex]

[tex]Ymax=6[/tex]

[tex]Yscl=1[/tex]

Note: For this question many answers are possible.

Answer:

Step-by-step explanation:

Given the surdic equation as shown [tex]\frac{\sqrt{6}+\sqrt{11} }{\sqrt{5}+\sqrt{3} }\\[/tex]

To find the quotient, we will rationalize by multipying both numerator and denominator of the function by the conjugate of the denominator.

Given the denominator [tex]\sqrt{5}+\sqrt{3}[/tex], its conjugate will be [tex]\sqrt{5}-\sqrt{3}[/tex]

Multiplying through by [tex]\sqrt{5}-\sqrt{3}[/tex], we have;

[tex]= \frac{\sqrt{6}+\sqrt{11} }{\sqrt{5}+\sqrt{3} } * \frac{\sqrt{5}-\sqrt{3} }{\sqrt{5}-\sqrt{3} }\\[/tex]

[tex]= \frac{\sqrt{30}- \sqrt{18}+\sqrt{55}-\sqrt{33}}{2}\\= \frac{\sqrt{30}- \sqrt{9*2}+\sqrt{55}-\sqrt{33}}{2}\\= \frac{\sqrt{30}- 3\sqrt{2}+\sqrt{55}-\sqrt{33}}{2}[/tex]

The final expression gives the requires answer

Answer: B. square root 30- 3 root 2 plus square root 55- square root 33/ 2

Step-by-step explanation:

its right

Answer:

3 right and 5 down

Step-by-step explanation:

Answer:

45%

Step-by-step explanation:

100%=36+26+18= 80 36/80 as a fraction is 45%

Answer:

3/20 or .15

Step-by-step explanation:

You need to find 3/5 of 1/4, so you need to multiply

3/5*1/4= 3/20

3/20 or .15

Answer:

4.5

Step-by-step explanation:

you do PEMDAS

you divide 1 by 4

then multiply it by 6

then 6 minus 1.5 is 4.5

i may be wrong

Look at the attached picture

hope it will help you

good luck on your assignment...

Answer:

[tex]x = 15 \: \: degrees \\ x = 18 \: \: degrees[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

B. The rate of change of item II is greater than the rate of change of them I

Answer:

16

Step-by-step explanation:

The area of a parallelogram is b * h, where b and h are the base and height respectively. We know the base but not the height. However, we see a right triangle that has the height and 3 as legs and 5 as the hypotenuse. Pythagorean Triples tell us that the height is 4 and the area will be 4 * 4 = 16 sq. units. Hope this helps!

Answer: 16

How you answered that: I just heard people don't know this answer. So, i hope this helps!

Answer:

1,875 cm³

Step-by-step explanation:

first find the volume of the large rectangular prism, which is 2,000 cm³

Then find the volume of the small rectangle, which is 125 cm³

now subtract 125 from 2,000

which equals = 1,875

Answer: The length of its radius is 2.5 inch.

Step-by-step explanation:

The radius is half the diameter so just divide the diameter by 2.

5/2= 2.5  

you said you will give use 20 points but it is marked as 5 Points.

Answer:

When working in trigonometry, you typically measure angles in.....

RADIANS

Answer:

RADIANS!!!

Step-by-step explanation:

Answer:

21.75 km/h

Step-by-step explanation:

Let's call the aircraft carrier speed 'x', so the speed of the container ship is 'x+8'

The distance travelled can be found with the product of the speed and the time travelled: d = v * t

The aircraft carrier travelled five hours, so the distance travelled is:

d1 = x * 5 = 5x

Then, the container ship travelled seven hours, so the distance travelled is:

d2 = (x+8)*7 = 7x + 42

As they travelled in opposite directions, the distance between then is the sum of these distances, and it is equal 303 km, so we have that:

d1 + d2 = 303

5x + 7x + 42 = 303

12x = 261

x = 21.75 km/h

Answer:

The aircraft carrier's speed was 13 km/h

Step-by-step explanation:

The parameters given in the question are;

Time of departure of the aircraft carrier = 5 hours before the container ship

Speed of the container ship = 8 km/h faster than the aircraft carrier

Distance between the two ships after 7 hours = 303 km

Let the speed of the aircraft carrier be Z

∴ The speed of the container ship = Z + 8

Since the aircraft carrier left port 35 travelling North 5 hours earlier we have;

Total time of travel of the aircraft carrier at the time of measurement of the distance between the two ships = 5 + 7 = 12 hours

Therefore, since both ships are moving in opposite direction on the same line path, we have;

303 = 12×Z + 7 × (Z + 8) = 12·Z + 7·Z + 56

19·Z = 303 - 56 = 247

∴ Z = 247/19 = 13 km/h

Hence, the aircraft carrier's speed was 13 km/h.

Answer:

x=50

Step-by-step explanation:

Simplifying

x = 50

Answer:

180/5*7=252 Miles

Step-by-step explanation: the mile in one hour equal 180/5=36 mile/hour

the miles in 7 hours = 36 *7 = 252 miles

210. Please mark as brainliest!

Answer:

800 [tex]in^{2}[/tex]

Step-by-step explanation:

Volume = lwh

Answer:

800 in^{2}

Step-by-step explanation:

Answer:

greater than

Step-by-step explanation:

half the times the cube was rolled it landed on six the theoretical probability is only eight, 48 > 8