Mathematics College

There are 22 students in your class. Your teacher is going to choose 2 students at random for a prize. What is the probability that it will be you and your best friend that is in the class?
A. 36
B. 70
C. 1/462
D. 6(4X+3Y-2)
E. 18.75
F. 23.36
G. 2.54
H. 36.3
I. 6(4X-3Y+2)

Answers

Answer 1

Answer:

C)  1 / 462

Step-by-step explanation:

22 x 21 = 462

Related Questions

Choose the equivalent answer for 6/7.

- 0.857142 repeating, about 85.7%
- 0.92, 92%
- 0.9, 90%
- 0.88 repeating , about 88.8%

Answers

Answer:

0.85714286

Step-by-step explanation:

the first answer- about 85.7% :)

Sydney is 8 years less than twice Steven’s age what is the algebraic expression.

Answers

Answer:

2s - 8

Step-by-step explanation:

sydney is 8 years LESS than TWICE stevens age.

let’s turn stevens age into a variable... s. the variable will be s. so sydney’s age is 8 years less than TWICE stevens age. so lets start with the twice stevens age..

since there is an easy way to make that part of the equation, let’s just put it as 2s. then we have to take sydney’s age as 8 years less than twice stevens. so that would be - 8. so if you add those 2 parts together, you get the equation 2s - 8.

So overall the proper equation will be 2s - 8.

7. Use substitution. What is the solution
to the system of equations? Explain.
This is the question and equation please helpppppp

Answers

12(1/4x + 4) - 48 = 3x
3x + 48 - 48 = 3x
x = 0

y = 1/4(0) + 4
y = 4
1) solve y
y= x/4+4
2) substitute- y=x/4+4 into y-48=3x
3x=3x

Hope this helps, and I hope you get your marks :)

Question
Solve 9 < 3x + 6< = 15 and write the solution in interval notation. If there is no solution, type Ø.

Answers

Given:

The compound inequality is

[tex]9<3x+6\leq 15[/tex]

To find:

The solution for the given compound inequality in interval notation.

Solution:

We have,

[tex]9<3x+6\leq 15[/tex]

Subtracting 6 from each side, we get

[tex]9-6<3x+6-6\leq 15-6[/tex]

[tex]3<3x\leq 9[/tex]

Divide each side by 3.

[tex]\dfrac{3}{3}<\dfrac{3x}{3}\leq \dfrac{9}{3}[/tex]

[tex]1<x\leq 3[/tex]

Here, 1 is not included in the solution set and 3 is included in the solution set.

Therefore, the solution in interval notation is (1,3].

Darrion's car has a gas mileage of 30 miles per gallon. How many miles can Darrion travel on 13 gallons of gas?

Answers

30 miles = 1 gallon

To find for 13 gallons you do:

30 x 13 = 390

Darrion can do 390 miles with 13 gallons of gas
30 times 13 because each gallon will take him 30miles... which would be 390miles

Good luck Brainliest would be appreciated

Write the following ratio as a reduced fraction. Simplify your answer when possible: 22 to 42

Answers

11/21 is the only right answer

Answer:

11 / 21

Step-by-step explanation:

The ratio 22 to 42 can be written as: 22 : 42, and in fraction form as:

22 / 42  in this fraction we can cancel a common factor of 2 from numerator and denominator, leaving us with the reduced fraction:

2 * 11 / (2 *21) = 11 / 21

Jack is growing Red wiggler worms to help make compost. He measured the lengths of two young worms. The 10- day old worm is 10/12 inch long. The 20-day old worm is 1 4/6 inches long. About how much longer is the 20- day old worm than the 10-day old worm? Explain how you found your estimate. 1

Answers

Answer:

Answer: The 20-day old worm is inches more longer than the 10-day old worm. If someone says the same thing as me, they copied me—

Step-by-step explanation:

can i get a brainliest-?

3xy - 4y when y =2 and x =5​

Answers

Basically plug in 2 where y is and 5 where X is
3(5)(2) - 4(2) , the parentheses are there to multiply
30-8
22

Answer:

22

Step-by-step explanation:

Help please !!
The table below represents a linear function. What is the slope of the graph of this function? input X: -2, -1, 0, 1, 2. output Y: -3, -1, 1, 3, 5

Answers

The answer should be B) 1/2

Answer:

2

Step-by-step explanation:

Rise/ run

y/x

Once you graph the ordered pairs you will have

(-2,-3) (-1,-1) etc...

it will work out to be up two over one 2/1 which equals two

HELP IMMDEIALEYELLYLEYLEYLELYELYLEYLELY MATH

Answers

Answer:

10n+10

Step-by-step explanation:

10n+10

Explanation:

When n=0 that must mean that you always add 10. From there it's pretty obvious that it's increasing by 10 each time, meaning that you multiply n by 10 as well

Laura bought y yards of fabric on Saturday. The next day, she went back and bought 3 more yards than she did on Saturday. If each yard of fabric costs $5, write an expression in simplest form for the total amount of money she spent on both days.

Answers

Answer:

(y+3)*5

im pretty sure this is correct

Help me please, Due now.

Answers

The answer is D because I already took the test
The answer is D my guy

Marcus construye 2,744 cometas para un festival de cometas de verano de 14 dias.planea regalar aproximadamente el mismo numero de cometas cada dia.regala 492 cometas los primelos dos dias¿siguio marcus su plan? Usa la estimacion para explicarlo.

Answers

Marcus no siguió sus planes.

Tendría que haber regalado 196 cada día.

2,744 dividido entre 14 es 196.

Which system of equations could be graphed to solve the equation below

Answers

There isn’t an equation blow

what is 702/0.06
pls help​

Answers

Answer:

11700

Step-by-step explanation:

I'm not sure if that is a fraction or if you're trying to divide it. That is the answer if you're trying to divide. Hope it helps.

What is the simplest form of the quotation simplify by rationalizing the denominator

Answers

Answer: below

Step-by-step explanation:

So, in order to rationalize the denominator, we need to get rid of all radicals that are in the denominator.

Step 1: Multiply numerator and denominator by a radical that will get rid of the radical in the denominator. ...

Step 2: Make sure all radicals are simplified. ...

Step 3: Simplify the fraction if needed.

evaluate f(x)=x/x-5 when x=3

Answers

Answer:

Step-by-step explanation:

3/3-5=3/-2


Simplify an expression for the perimeter of the rectangle.

Plz quick

Answers

Step-by-step explanation:

i think it should be

2(8x+3)+10

Answer:

16x+16

Step-by-step explanation:

8x+3+8x+3+5+5

16x+6+10

16x+16

fred has 20 dollars to spend on 3 gifts. He spent 9 1/4 dollars on gift A and 4 4/5 dollars on gift B. How much money did he have left for gift C?

Answers

Answer:

Step-by-step explanation:

Your answer

Money left for gift c is = 5 19/20

Mark it as Brainlist answer. Follow me.

What’s the answer to the equation “x^-4 • 2x^-3 y^-3” ??

Answers

Answer:

Get the app Photo Math

Step-by-step explanation:

Gives you the answer and if they ask to show work they also show a step on step on how they did the work

If you get Photomath and use the camera it will give you the answer. You’ll have to pay to see the steps though

Harrison pays $22.36 each month for his phone bill.
He also pays an extra $4.73 each time he makes a
long-distance call. Harrison paid a total of $64.93
for his phone bill last month. Write an equation to
find how many long-distance calls he made.
22.36 + 4.73c = 64.93
Solve the equation:
C
= [?]

Answers

Answer:

9

Step-by-step explanation:

64.93-22.36=42.57

42.57/4.73=9

A ramp is propped against the back of a truck. There is a 30 degree
angle between the ramp and the horizontal pavement
If the distance along the ground from the end of the ramp to the point
on the ground below the back of the truck is 9 feet, how long is the
ramp, in feet? Round your answer to the nearest whole number,

Answers

Step-by-step explanation:

hope it help:)

/////////////////////

The trigonometric function gives the ratio of different sides of a right-angle triangle. The length of the ramp is equal to 10ft.

What are Trigonometric functions?

The trigonometric function gives the ratio of different sides of a right-angle triangle.

[tex]\rm Sin \theta=\dfrac{Perpendicular}{Hypotenuse}\\\\\\Cos \theta=\dfrac{Base}{Hypotenuse}\\\\\\Tan \theta=\dfrac{Perpendicular}{Base}[/tex]

where perpendicular is the side of the triangle which is opposite to the angle, and the hypotenuse is the longest side of the triangle which is opposite to the 90° angle.

The length of the ramp is,

Cos(θ) = Base/Hypotenuse

Cos(30°) = 9ft /The length of the ramp

The length of the ramp = 9ft/Cos(30°)

Length of the ramp = 10.3923 ft ≈ 10ft

Hence, the length of the ramp is equal to 10ft.

Learn more about Trigonometric functions:

https://brainly.com/question/6904750

#SPJ2

Evaluate the expression below, if a = 3, b = 4, c = 12, and d = 1

Answers

Alabama hi hi hi hi hi hi hi hi hi hi

11-
10
9
OP
7
6
Weight (kilograms)
01
NO
X
1
2
3
8
9
10
4 5 6 7
Age (months)
The scatter plot shows the weight of a child each month.
per month.
kilograms. The child gains an average of
The birth weight of the child is
Reset
Next

Answers

Answer:

13 kg

Step-by-step explanation:

I'm 14 years old so my weight was 50 kg

Write the phrase as an expression.

3 times a number x

Answers

Answer:

It would have to be 3x or 3(x)

which symbol will make the following statement true? |−27|_____ 19

Answers

Answer:

the greater than symbol(>)

Step-by-step explanation:

the absolute value of -27 is 27. 27>19

A jeweler is making a triangular pendant. He has two sides of length 23 mm and 31 mm. What are the possible lengths (in whole mm) for the third side?
A. 8 mm or less
B. between 9 mm and 53 mm
C. 54 mm or more
D. not possible

Answers

Answer: between 9 mm and 53

Step-by-step explanation:

U do 23 - 31 you get 8 then you do 23 + 31

answer please quick i need help i only have 3 mins left

Answers

Answer:

70/100 ⋅ 80

0.7 ⋅ 80

7/10 ⋅ 80

Step-by-step explanation:

Brainliest please??

I think you have to divide 80 by 3 tell me if you don’t know how to

Find the slope of the line through the given points.
(-7, 7), (-1, 10)

Answers

Answer:

slope={10-7)/(-1--7)=3/(-1+7)=3/6=1/2

Answer:

3/6 or 1/2 (simplified)

Step-by-step explanation:

Use the slope formula: (change in y)/(change in x)

PLS HELP WILL GIVE U POINTS
Describe the histogram using the SUCS acronym

Answers

Can you define the SUCS acronym and maybe I’ll be able to help. I’ve never heard of it
Other Questions
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