How to do the 9 multiplication trick.

Answers

Answer 1

Answer:

0123456789

9876543210

Step-by-step explanation:

09

18

27

36

45

54

63

72

81

90

Answer 2

Answer:

Step-by-step explanation:

for each 9 you add, take away 1 from the first number and add 10, like

81

72

63

52

41

32

23

18

9


Related Questions

Here is a list of five numbers.98^53 98^64 98^73 98^88 98^91Find the lowest common multiple of these five numbers.

Answers

Answer:

98^91

Step-by-step explanation:

Since the base of all the numbers is 98,

the LCM is simply the one with the greatest exponent

example

98^53 * 98^38 = 98^91

I am a student in 7th honers and was wondering if someone can help me learn the basics of pre-algebra because I understand none of it.​

Answers

Answer:

I reccommend using an AoPS book. You can learn more at aops.com

Step-by-step explanation:

Las propiedades de las multiplicaciones nos llevaran a igualar distint
algebraicas para determinar su equivalentia,
1. En la figura 2.1 se muestran dos formas de descomponer el drea de

cuyos lados miden 35 u y 22 u. Completalos con las medidas que fa
a) Cual es el area total de los rectangular?
b) Calcula el area de las secciones que componentcada rectangula
c) Que relacion hay entre el area total de cada rectangular y las areas
nes que los component

35 u X 20 u

30 u x 20 u

Answers

Answer:

i think it would be c

Step-by-step explanation:

What times 5/8 equals 1

Answers

Answer:

1.6

Step-by-step explanation:

5/8 = .625

1/.625 = 1.6

.625* 1.6 = 1

Answer:

8/5.

Step-by-step explanation:

That is the inverse of 5/6:- 8/5.

Find the missing side.
09
9.5
10
C
7 cm
10.6
8 cm
HELP PLEASE

Answers

Answer:a

Step-by-step explanation:

i know

Each year, the students in seventh grade go to an environmental camp. This year, the total cost is $1,580 for 79 students. Which equation represents the cost, y, of attending the camp for x number of students?

Select the correct answer.
y = 20x
y = 79x
y = 79x + 1580
y = 1580x + 79

Answers

y=79x+1580, this is the correct answer

Answer:

y=20x

Step-by-step explanation:

You have to find the cost by dividing the amount of money by the amount of students, to see house much each student paid. You are finding the unit price. Which is 20 because...

1.580/79=20

In conclusion,

Each student paid $20

Can someone please help solving for x

Answers

Answer:

x=6.7

Step-by-step explanation:

In relation to the given angle, we are given the triangle's opposite side and hypotenuse. Therefore, we use the sine function to set up a proportion and solve for x:

[tex]sin(\theta)=\frac{opposite}{hypotenuse}[/tex]

[tex]sin(31^\circ)=\frac{x}{13}[/tex]

[tex]13sin(31^\circ)=x[/tex]

[tex]x=13sin(31^\circ)[/tex]

[tex]x\approx6.7[/tex]

So, the opposite side is about 6.7 inches

What is the slope of this line?

Answers

Answer:

y= -3x -3

Step-by-step explanation:

When using re-grouping to solve 25 x 45, what are the four problems that would be calculated to find the final answer?
A.20 x 40; 5 x 40; 20 x 5; 5 x 5
B.20 x 20; 40 x 40; 20 x 5; 5 x 5
C.20 x 40; 20 x 5; 40 x 5
D.20 x 40; 5 x 20; 20 x 5; 5 x 5

Answers

Answer:

It is number 1

Step-by-step explanation:

I tried it.

The difference of 7 and the square of a number

Answers

Answer:

7 - [tex]x^{2}[/tex]

Step-by-step explanation:

This is the answer because:

1. "Difference" means subtraction

2. The statement basically is saying, what is 7 subtracted by the square of x

3. That simplifies to 7-x^2

Hope this helps!

Hi there! (:

The difference of means we subtract:

7-f² (let the number be f)

Hope it helps!

~An excited gal

#StayJoyful

[tex]SparklingFlower[/tex]

What is the slope of the red line if the green is 2/3

Answers

answer: b) -3/2

explanation: perpendicular line have the opposite reciprocal of the line.

Answer:

a

Step-by-step explanation:

ANSWER PART B


Sia designs a board game in which a card is drawn on each turn.

• A blue card means move forward 4 squares.
• A red card means move back 6 squares.

Liam suggests adding some other cards to Sia's game

Part A
Liam explains that drawing a yellow card is equivalent to drawing a blue card followed by a red card. How many spaces forward or backward does a player move after drawing a yellow card? Justify your answer.

ANSWER PART B


How could Liam use red, blue, and yellow cards to describe each of the following motions? Write equations to support your answer. • A green card means move forward 2 spaces. • An orange card means move 8 spaces backward. • A purple card means move forward 10 spaces.

Answers

Answer:

Answer:Back 2

Step-by-step explanation:Blue + Red=-2

Step-by-step explanation:

In total there are 53,444 adults at a football match there are 4300 more women then men at the match how many men are at the match

Answers

Answer:

There are 24,572 men.

Step-by-step explanation:

Let men = m, let women = w.

m + w = 53,444

w = 4300 + m

m + (4300 + m) = 53,444

m + m + 4300 = 53,444

2m + 4300 = 53,444

2m = 53,444 - 4300

2m = 49144

m = 49144/2

m = 24,572

46 pts to first correct and brainliest. Help ASAP PLZ. GOD BLESS YOU

Answers

Answer:

a^4

Step-by-step explanation:

First evaluate the quantity inside the parentheses:  (a^(-3)).

Then raise this result to the power -1:

(a^(-3))^(-1) = a^4

Answer:

a^3

Step-by-step explanation:

1/a^-1 a^-2

a^-1a^-2= a^-3

1/a^-3

1/1/a^3

a^3/1

a^3

The sum of two consecutive odd numbers is 52.Using an algebraic equation
find the two odd numbers.

Answers

Answer: 25, 27

Step-by-step explanation:

52=x+x+2=50=2x=x=25

What is the solution to 1/2 |x| = -3
Options:

x = -6

x = -6 or x = 6

x = -6 or x = 2

No solutions exist.

Answers

Answer:

No solution

Step-by-step explanation:

multiplying both sides by 2 gives |x|=-6 but an absolute value can't be negative so there are no solutions

see more at: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-negative-number-topic/cc-6th-absolute-value/a/intro-to-absolute-value

HELP ANSWER ASAP
ANSWER???

Answers

A proportional relationship means that two or more things are directly proportional, or that the quantities increase or decrease according to equivalent ratios. We can state this proportional relationship with the formula, y = kx. Y and x here are the quantities that are proportional to each other.

Proportional ur welcome :)

Help me please!

Bill is building a fence around his garden. For every 3 feet of fencing, the cost is $21.

Complete the table below showing the length of the fence and the cost.

Answers

Answer:

(cost ---> length)

35 ---> 5

49 ---> 7

56 ---> 8

70 ---> 10

y/4 − 2 = 9

what does y =

Answers

Answer:

y = 44

Step-by-step explanation:

First, add 2 on both sides to get y/4 = 11, then multiply 4 on both sides to get y = 44.

Hope this helps :)

y/4 - 2 = 9

Turns into

y/4 = 11

Then multiply both sides by 4 to get rid of the division

y = 44

Which value of m is a counterexample for the following statement?

If m is an odd prime number, then m + 2 is also prime.

Group of answer choices

7

3

5

9

11

Answers

Answer:

3

Step-by-step explanation:

because 3 is a prime number and 3+2=5 which is also a prime number

Which of the following can be the sides of a right angled triangle?
(i) 1.5 cm, 2 cm, 3 cm (ii) 6 cm, 1.1 cm, 6.1 cm

Answers

Answer:

(ii) 6 cm, 1.1 cm, 6.1 cm

Step-by-step explanation:

Knowing that all right triangles obey the Pythagorean Theorem, we can test both sets of numbers. The longest of the 3, the hypotenuse, is substituted to the c value of the equation a^2 + b^2 = c^2. If the equation is still true after substituting and simplifying both sides, that combination of triangle lengths is the correct answer. In this case, 6^2 + 1.1^2 and 6.1^2 are both equal to 37.21, so the second set is correct.

A. Complete the table if y varies
directly as x or x2
B. Complete the table if y varies inversely as x.

Answers

Direct variation is represented by the equation y = k × x and inverse variation is represented by y = k/x

Table 1:

y = k × x

30 = k × 5

30 = 5k

k = 30/5

k = 6

So,

y = 30

y = 30 k = 6

y = 30 k = 6x = 5

y = 30 k = 6x = 5Equation: y = 6x

y = k × x

y = 10 × 8

y = 80

So,

y = 80

y = 80 k = 10

y = 80 k = 10x = 8

y = 80 k = 10x = 8Equation: y = 10x

y = 3x

18 = 3x

x = 18/3

x = 6

So,

y = 18

y = 18k = 3

y = 18k = 3x = 6

y = 18k = 3x = 6Equation: y = 3x

y = 2x²

72 = 2x²

x² = 72/2

x² = 36

x = √36

x = 6

So,

y = 72

y = 72k = 2

y = 72k = 2x = 6

y = 72k = 2x = 6Equation: y = 2x²

Table 2:

y = k/x

5 = k/6

5 × 6 = k

30 = k

So,

y = 5

y = 5k = 30

y = 5k = 30x = 6

y = 5k = 30x = 6Equation: y = 30/x

y = k/x

y = 36/4

y = 9

So,

y = 9

y = 9k = 36

y = 9k = 36x = 4

y = 9k = 36x = 4Equation: y = 36/x

y = 60/x

20 = 60/x

20x = 60

x = 60/20

x = 3

So,

y = 20

y = 20k = 60

y = 20k = 60x = 3

y = 20k = 60x = 3Equation: y = 60/x

y = 24/x

y = 24/12

y = 2

So,

y = 2

y = 2k = 24

y = 2k = 24x = 12

y = 2k = 24x = 12Equation: y = 24/x

Read more:

https://brainly.com/question/472621

OMG help.
What is 1+1?

Answers

Answer:

2

Step-by-step explanation:

Hahaha thank you

Answer:

2

Step-by-step explanation:

1 plus 1 is two use ur fingers

Please Help Me Solve This! I Need Help Now!



Correct Answer = Brainliest

Answers

Answer:

Switzerland tickets: $13.53

Japan tickets: $ 17.36

Step-by-step explanation:

Switzerland tickets- $13.53
Japan tickets- $17.36

Question 1: Select the property shown
by the statement: 3a • 5b = 3.5 a.
b
A. Commutative
B. Associative
C. Reflexive
D. Symmetric
E. Transitive

Answers

Answer:

E BC itsay 3a 5b = 3.5 so it E

helpppp


simplify √5 × √3

Answers

Answer:

√15

Step-by-step explanation:

When you multiply surds:

multiply the numbers inside the square roots i.e. √(5 × 3) = √15simplify if possible (not possible in this case)

Hope this helps!

Find an ordered pair (x,y) that is a solution to the equation. 3x-y=8

Answers

Answer:

(2,-2)

Step-by-step explanation:

[tex]3x-y =3(2) -(-2)= 6 +2 = 8[/tex]

help? plssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss

Answers

Answer:

you're right, d measures 180 degrees

Step-by-step explanation:

the protractor is measuring a straight line and straight lines measure 180 degrees

hope this helps

A muffin recipe calls for 2 eggs to make 12 muffins.

If you want to make 36 muffins, what should you do?

Answers

You can make an equation
2 eggs/ 12 muffins = x eggs/ 36 muffins
They will have to be proportional
2/12 = x/36
12 * 3 = 36
2 * 3 = 6 eggs

You will need 6 eggs

Answer:

6 eggs

Step-by-step explanation:

since recipe states that to make 12 muffins you need 2 muffins

2. = 12

represent the unknown with x

2. = 12

x. = 36

Then you'll cross multiply

36 × 2 = 72

12x = 72

x = 72 ÷ 12

x = 6

50 POINTS!!

Mr. reed and Mr. Bob are conducting a sensitive physics experiment and are standing
on a coordinate grid. They need to place a motion sensor exactly halfway between
them. If Mr. To is standing at coordinates (–7, 3), and Mr. Syal is standing at (5, -5),
where should the motion sensor be placed?

Answers

Answer:

(-1,-1) I think

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