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3 years ago

How to memorize multiplication tables in one day?

1 answer:

6 0

You cannot memorize a whole multiplication chart in one day, but if you go online and search multiplication stories, there may be some stories to help you memorize your facts quicker depending on your learning style. Also try and remember that any number times any number is just that number being added over and over again a certain amount of times. For example: 3*4= 3+3+3+3 Hope this helps :)

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What is the solution to the following system of equations? 4x + 2y = 18 x − y = 3

Ber [7]

For this case we have the following system of equations:

$4x + 2y = 18\\x-y = 3$

To solve, we clear "x" from the second equation:

$x = 3 + y$

We substitute "x" in the first equation:

$4 (3 + y) + 2y = 18\\12 + 4y + 2y = 18\\12 + 6y = 18$

We clear the value of the variable "y":

$6y = 18-12\\6y = 6\\y = \frac {6} {6}\\y = 1$

We look for the value of the variable "x":

$x = 3 + y\\x = 3 + 1\\x = 4$

Thus, the solution of the system is given by:

$(x, y) :( 4,1)$

Answer:

$(x, y) :( 4,1)$

Option D

4 0

2 years ago

Round 141.999 to the nearest tenth

Minchanka [31]

Hundredth: 142
Hundred: 100
Ten: 140
Tenth: 142<span />

7 0

2 years ago

Write a number that has four digits with the same number in all places such as 4444 circle the digit with the greatest value und

joja [24]

For example you can take the number 7 7 7 7

(7)77{7}

The first seven is the greatest it's 7,000

The last seven is the least its 7

HOPE THIS HELPS!!!

4 0

3 years ago

Simplify the expressions and find the value:

Dahasolnce [82]

Answer:

$x(x−3)+2=x.x−3x+2 \\ =x2−3x+2 \\F or x=1 \\ putting \: x=1 \: in \: expression \\ x2−3x+2=(1)2−3(1)+2 \\ =1−3+2 \\ =3−3 \\ =0$

$Solve \: 3y(2y−7)−3(y−4)−63 for y=−2 \\ First \: simplify \: it, \\ =6y2−21y−3y+12−63 \\ =6y2−24y−51 \\ Put \: y=−2 \: =6(−2)2−24(−2)−51 \\ =6×4+48−51 \: 6×4+48−51 \\ 24+48−51 \\ =21$

3 0

2 years ago

A coat that usually costs $120.00 is marked 1/3 off. What is the sale price of the coat?

dedylja [7]

If the coat is 120$ then 1/3 is taken off it would be 80$

Step-by-step explanation:

1/3 of 120 is 40. 40x 3 is 120.

7 0

2 years ago

Read 2 more answers