1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
maksim [4K]
3 years ago
10

Explain how to find 40 x 50 using mental math

Mathematics
2 answers:
Blababa [14]3 years ago
7 0
40 * 50= 2,000

Easy way to find this out!

4*5=20.

You take the 0 from 40 and the 0 from 50 and you have 

20 +0 zeros.

2000 which is 2,000!
Dafna11 [192]3 years ago
7 0
First, do 4 times 5 equal 20. Then just add two, zeros. That will make it 2,000. The answer is 2,000
You might be interested in
13. WILL MARK BRAINLIEST!! HELP!​
Umnica [9.8K]

Answer:

\large\boxed{\dfrac{x+2}{x^2-6x-16}\div\dfrac{1}{9x}=\dfrac{9x}{x-8}}

Step-by-step explanation:

\dfrac{x+2}{x^2-6x-16}\div\dfrac{1}{9x}=\dfrac{x+2}{x^2+2x-8x-16}\cdot\dfrac{9x}{1}\\\\=\dfrac{(x+2)(9x)}{x(x+2)-8(x+2)}=\dfrac{(x+2)(9x)}{(x+2)(x-8)}\\\\\text{cancel}\ (x+2)\\\\=\dfrac{9x}{x-8}

8 0
3 years ago
Write the coordinate rule to describe The translasion​
sergejj [24]

Answer:

The coordinates are:

A ( 4,7 )

B ( 8,10 )

c ( 7,7 )

Step-by-step explanation:

You could take the original coordinates and add the x value with 3 and y value with 6. Like for example...

The original coordinates of C is ( 4,1 ). Hence you could add the x value with 3 and y value with 6. 4 + 3 and 1 + 6 giving you the coordinates after translation = ( 7,7 )

6 0
2 years ago
5x+5=1/2x-4 , what is x
melomori [17]

The answer is x = -2. The steps are in the image below.

Hope this helps!!!!!!!!

Please give me brainliest!!!!!!!!!!!

8 0
2 years ago
Read 2 more answers
Vanessa earns a base salary of $400.00 every week with an additional %5, percent commission on everything she sells. Vanessa sol
Leona [35]
$482.5 is the FINAL ANSWER

To find commission:
We can use the base of 100% being 1650
We can use 5% because thats her commission
Use: 100(x)=1650(5) -> 100(x)=8250 after doing math, youll get the outcome of 82.5 commission

To find the total:
Just add that commission to her total being 82.5 + 400 = 482.5 $

5 0
2 years ago
Help on 22 and 23 please
hram777 [196]

Answer:

22.

R= -8, 15

S= -5, 9

T= -8,9

23.

J = 4, 4

K = 4, 3

L = 1, 1

M = 1, 4

Step-by-step explanation:

rotation of -90= y, -x

so R (-7, -5) = -5,7

S (-1, -2) = -2, 1

T (-1, -5) = -5, 1

now we translate 3 left (x-3) and 8 up (y+8)

R (-5, 7) = -8, 15

S (-2, 1) = -5, 9

T (-5, 1) = -8, 9

reflection of x-axis= x, -y

J (-4, 4) = -4, -4

K (-3, 4) = -3, -4

L (-1, 1) = -1, -1

M (-4, 1) = -4, -1

Then a 180° rotation is (-y, -x)

J (-4, -4) = 4, 4

K (-3, -4) = 4, 3

L (-1, -1) = 1, 1

M (-4, -1) = 1, 4

4 0
3 years ago
Other questions:
  • The cruise boat can carry up to 45 passengers. the company wants to know the minimum number of passengers needed per cruise to c
    13·2 answers
  • Is the following relation a function?<br><br><br> Yes<br><br> No
    5·2 answers
  • Becki put some stamps into her stamp collection book she put 14 stamps on each page if she completely filled 16 pages how many s
    12·1 answer
  • Find the area of the circle with the given radius or diameter. Use pi = 3.14. d = 10 A =
    14·2 answers
  • What is the area of the figure? The diagram is not drawn to scale. Can somebody please helppp thanks
    5·1 answer
  • What is the value of x in the equation 2(6х+4)- 6+ 2х = 3(4х+3) + 12<br> оооо
    5·1 answer
  • Very simple math problem (in picture
    11·1 answer
  • Which of the following is equivalent to the complex number i^9
    6·1 answer
  • I can never get these answers right omggg I need help!
    14·2 answers
  • Please help with 18 and 19 ASAP ill do brainiac
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!