A two-digit number is written at random. The probability that the number will be odd is . The probability that the number will be larger than 75 is . The probability that the number will be a multiple of 5 is . The probability that the number is even and less than 40 is .

Answers

Answer 1

Step-by-step explanation:
GIVEN: Two digit number means we will have to choose from numbers 0-9 for the second digit and 1-9 for the first digit. (since zero can't be in the tens place)
Formula: We will use m x n. That is, m is the number of elements we can use for the first digit and n will be the number of elements we can use for the second digit.
Sample Space: To get the probability, we must find the sample space or all the outcomes.
m - 9 elements (1-9)
m - 9 elements (1-9)n - 10 elements (0-9)
m x n = 9x10 =90
90 is our sample space.
A. An odd number
Conditions: For an odd number, the second number will determine whether or not it is an odd number. For the first digit, we can use 1-9.
Elements:
m - 9 elements (1-9)
m - 9 elements (1-9)n - 5 elements (1,3,5,7,9)
m x n=9x5=45
SOLVE (probability)
Probability= possible outcomes/sample space
P=45/90
P=1/2
B. Larger than 75.
Conditions: The first digit could be equal to 7 or greater. But n will only be greater than 5 if and only if m=7 and n could be any number if m>7.
Elements 1:
m - 1 element (7)
m - 1 element (7)n - 4 elements (6,7,8,9)
m - 1 element (7)n - 4 elements (6,7,8,9)m x n=1x4=4
Elements 2:
m - 2 elements (8,9)
m - 2 elements (8,9)n - 10 elements (0,1,2,3,4,5,6,7,8,9,)
m - 2 elements (8,9)n - 10 elements (0,1,2,3,4,5,6,7,8,9,)mxn=2x10=20
TOTAL: 4+20=24
SOLVE (PROBABILITY)
Probability= possible outcomes/sample space
P=24/90
P=4/15
C. multiple of 5
Condition: the second digit must be either 0 or 5 and the first digit could be any digit.
Elements:
m - 9 elements (1-9)
m - 9 elements (1-9)n - 2 elements (0,5)
m x n =9x2=18
SOLVE (PROBABILITY)
P=18/90
P=1/5
D. An even number smaller than 40
Condition: The first digit could be equal to 4 but the second digit must be even (excluding zero). Another situation is the first digit would be greater than 4 and the second digit would be any even number.
Elements 1:
m - 1 element (4)
n - 4 elements (2,4,6,8)
m x n = 1x4=4
Elements 2:
m - 5 elements (5,6,7,8,9)
n - 5 elements (0,2,4,6,8)
mxn=5x5=25
TOTAL: 25+4=29
SOLVE: Probability
P=29/90

Related Questions

what is the value of the expression 2 to the power of 6 and 2 to the power 2

Answers

2 to the power of 6 is equal to 64, and 2 to the power of 2 is equal to 4.

Answer:

2 to the power of 6 = 64

2 to the power of 2 = 4

Step-by-step explanation:

2x2x2x2x2x2=64

2x2=4

***WILL MARK BRAINLIEST*** Write in Scientific Notation! #2

Answers

1) 50,400,000 or 5.04 x 10^7

2) 820,000 or 8.2 x 10^5

3) 0.0000334 or 3.34 x 10^-5

Good luck! :)))

1. 3400470
2.820000
3. About 3.34 times 10 to the -5th power

HELP PLEASE! NO LINKS! TEN POINTS!

Help please! Explain it if you can please!

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Okay so the diameter is 6 inches right? And the area formula for a circle is: A=pi (they want you to use 3.14) r (radius) ^2 (squared)

A=(pi)r^2

and the area formula for a square is just sxs right? Side x side.

So 6x6=36 (that’s the area for the square)

And since we know the diameter we can figure out the are of the circle (I know it’s a half circle but just wait I’ll get to that)

Diameter is twice the radius.

So likewise the radius is half the diameter.

6/2=3

The radius is 3 inches.

So let’s plug that into the formula

A=(pi)3^2

That comes out to 113.1 inches

Since it’s half a circle we divide it by 2

That’s 56.55

So we add them.

56.55+36= 92.55 inches

Have a good summer :)

The answers is 92.55

Please answer 1-5 i will give brainiest and 40 points

Answers

Answer

3) 5

4a) 30-34

4b) 3 there are more people around the age of 30-34 then any other numbers

5)?

im not sure for 5 but i hope this helps :)

4 raised to the power of 5 equals 1,024. Explain how to use that fact to quickly evaluate 4 raised to the power of 6.

Answers

multiply 1,204 by 4
since 4 to the power of five is the same as 4x4x4x4x4 which is 1,204, you would just have to multiply 1,204 times 4 to get 4 to the power of 6

A jar contains 4 black, 5 white, 6 brown, and 8 yellow marbles. A marble is chosen at random from the jar. After replacing it, a second marble is chosen. What is the probability of choosing a brown and a yellow marble?

Answers

Answer:

A is the answer

Step-by-step explanation:

Answer:

It is A 48/529

Find the area of a circle with diameter 18 ft Use the value 3.14 for pi, and do not round your answer. Be sure to include the correct unit in your answer.

Answers

Answer:

254.34 ft²

Step-by-step explanation:

Formula for the area of a circle: [tex]A=\pi r^{2}[/tex]

To solve this problem, all you need to do is plug in the correct values for the variables and solve.

1) In the formula, r stands for radius of the circle, which is half of the diameter. Knowing this, we can find the radius by dividing 18 by 2 to get 9. So, r = 9.

2) The problem also tells us to use 3.14 for pi, so that's a given.

3) With all of this information, we can plug in the appropriate values for each variable to get. [tex]A=3.14(9^{2})[/tex] Now, solve the problem and you should have get [tex]A=254.34[/tex].

If y represents a student's age, which inequality shows that you must be older than 14 to try out for the basketball team?

Answers

Y>14. Y is the student age and the sign shows that it is greater than 14

Inequality shows that you must be older than 14 to try out for the basketball team is y > 14

What is an inequality?

An inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. It is used most often to compare two numbers on the number line by their size.

According to the question

y represents a student's age

Inequality shows that you must be older than 14 to try out for the basketball team.

⇒ y > 14

y represents age.

Find out more information about inequality here

https://brainly.com/question/20383699

#SPJ2

please help me for this question

Answers

5 x 6 = 30

9 x 6 = 54

54 is your answer

Answer:

Step-by-step explanation:

5 x 6 = 30

9 x 6 = 54

54 is your answer

Need help. Please

Finish graph

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Here is what you might get. Hope it helps! Brainliest would be appreciated

sum1 plssss help me!! i'll give brainliest!

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The range of the function is C.

When a questions asks about the RANGE of the function, they are specifically talking about Y-VALUES. If a questions asks about DOMAIN, they want the X-VALUES.

This is a quadratic function.

A and B could be eliminated right away since range asks for y-values, not x-values.

the answer to the question is c.

Ellen has a plastic bag with 3,000 cm^3 of sand, and she wants to put it in a cylindrical bottle that has a height of 15 cm and a radius of 7 cm.

Will all the sand fit in the bottle?

Yes, because the volume of the bottle is about 6,232 cm^3 more than the volume of the sand.
No, because the volume of the bottle is about 692 cm^3 less than the volume of the sand.
No, because the volume of the bottle is about 2,341 cm^3 less than the volume of the sand.
Yes, because the volume of the bottle is about 1,946 cm^3 more than the volume of the sand.

Answers

Answer:

No, because the volume of the bottle is about 692 cm^3 less than the volume of the sand.

Step-by-step explanation:

Answer:No, because the volume of the bottle is about 692 cm^3 less than the volume of the sand.

Step-by-step explanation:

Ali cycled from Town A to Town B. He covered 1/5 of the trip in the first hour and 1/3 of the trip in the second hour. He took 2 hours to cycle the remaining 14 km. Fin his average speed for the whole trip.

I need this as soon as possible please answer this I will give brainlilest! :)

Answers

his average speed would be 7km per hour

anwser: 7km per hour

step by step explanation:

help me pls dont waste my points lol

Answers

Every square has 4 toothpicks. Two squares would be a total of 8 toothpicks. 3 squares is 12 toothpicks, 4 squares is 16 toothpicks, and 5 squares is 20 toothpicks.

Just under 44 squares would equal 175 toothpicks.

ANSWER:

# Toothpicks. # squares

8. 2

12. 3

16. 4

20. 5

Pls help me with this problem

Answers

Answer: 5

Step-by-step explanation: x means 5

You got it correct
1: greater than 1
2: less than -1
3: neither
4: greater than 1
5: less than -1

Melissa has 10 1/2 pounds of candy that she wants to share. If she divides the candy between herself and six friends, how many pounds of candy will each person get?

A. 1 1/2 pounds
b.3 pounds
c 73 1/2 pounds.
d 1 3/4 pounds
PLS HELP!!

Answers

Answer:

I think the answer is A

Step-by-step explanation:

Explain how you can find the centre of a circle if you are given three points on the circumference. Use a drawing to support your answer.

Can someone help me with this I don't understand it. It's from Chapter Test from the Nelson Textbook for Grade 8's in chapter 10. A diagram would be helpful too. Thanks.

Answers

Join up the points to form two lines
Construct the perpendicular bisector of one line
Construct the perpendicular bisector of the other line
Where they cross is the center of the circle
Place compass on the center point, adjust its length to reach any point, and draw your circle

Needed these points sorwy

If someone could answer that would be great. The test is not timed btw

Answers

Answer:

what grade is this?

Step-by-step explanation:

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image isnt working cant help

Step-by-step explanation:

please answers in detail common assessment 2 question.

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Answer:

The answer from the picture would have to be 89 degrees.

Step-by-step explanation:

Since both lines are parallels, that means that the lines would never touch. This would make the lines both the exact same degrees.

Hope that helps!

Answer:89

Step-by-step explanation: obviouly the bottom line is the same line for both the two arrows on the lines mean they are parallel if both angles are under the same conditions that means they are equal, the first angle is equal to 89, hence the other angle is 89

BRAINLYEST PLZ

For each term below, identify the coefficient and the variable.

A.) 6r _____coefficient _____variable

B.) 20n _____coefficient _____variable

C.) y _____coefficient _____variable

D.) 9trx _____coefficient _____variable

Answers

Answer:

A.) 6r

coefficient = 6

variable = r

B.) 20n

coeffect = 20

variable = n

C.) y

coefficient = 1

variable = y

D.) 9trx

coefficient = 9

variable = t, r, and x

Step-by-step explanation:

Coefficient = represented by a number

Variable = represented by a letter

For the third one y is the same as 1y therefore y has a coefficient of 1

Answer
Helpppppppp ¥¥¥¥¥¥

Answers

I’ll do the first one for you
5 x 2 = 10
10pi = around 31.42

You are really just multiplying the diameter by pi, if you are only given the radius, double it first

1: 31.42

2: 144.51

3: 43.98

4: 59.69

5: 75.4

6: 106.81

How to:

2 · 3.14 · the radius= the circumference

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Answer:

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Step-by-step explanation:

Answer:

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Step-by-step explanation:

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If you search up “how to solve a cone” you can get the same answer

1017 :) oriedjndnddf

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Answer:

Step-by-step explanation:

- 7th Grade Work -

Please write your answer like this:

1.
2.
3.

Answers

Answer:

1. -4x < 8

2. 4x < 8

3. When something is done to one side of the equation, the same thing must be done to the other side. Dividing each side by -4 in part A would cause the sign to flip because the sign is always flipped when dividing by a negative. Because 4 in 4x (part B) is not negative, the sign is not flipped.

Step-by-step explanation:

Hope this helped!!

1. -4x < 8
2. 4x < 8
3. i’m not sure

correct answer gets brainlest

Answers

Answer:

Step-by-step explanation:

Pls brainliest

Answer:

when putting them in this order: 7,7,8,8,8,8,9,9,10

the medium of this is 8 and 8 so you add them up and devide by 2 getting u 8 because 8+8=16 and 16/2 is 8

what is the value of q ?

Answers

71° is the answer. 44°+27°=71°

Answer:
71

Explanation:
44 + 27 = 71

Plz help me thank you

Answers

Answer:

answer is 1/100, 1/100, and 100

Answer:

0.5 is 1/100 times 50. 0.005 is 1/100 times 0.5. 50 is 100 times 0.5

Step-by-step explanation:

HOPE THIS HELPS YOU!!!!!! :) :) :) :) :)

SORRY IF IT IS WRONG. :) :) :) :) :)

Please help i don’t know what I’m supposed to do!!

Answers

Answer:

do ur assignment by downloading the given document and upload it there..

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