Please explain how to find 40 x 50 using mental math... xD

Answers

Answer 1

Answer:

Basically, what you do is multiply 4 times 5 ( this only applies when the numbers are in tens so like 10,20,30,40, etc.)

then after this you add the zeros of both numbers.

Step-by-step explanation:

so, this would be 2000


Related Questions

Kayla thinks that the slope of a vertical line is undefined, while Joshua
argues that the slope of a vertical line is zero. Who is correct?
a. Kayla b. Joshua

Answers

Answer:

Kayla

Step-by-step explanation:

Vertical lines are always undefined because if your answer has to be divided by zero, the answer is an undefined operation.

Horizontal lines always have the slope of zero!

The slope of a vertical line is undefined.

Kayal is correct.

The rate of change in the table is -6.

The slope of the graph is 3/2.

What is a slope?

The slope of a is the change in the y coordinate with respect to the change in the x coordinate.

We have,

A vertical line means there is no change in the x-coordinate.

i.e slope = change in y-coordinates / change in x-coordinate

slope = change in y-coordinate / 0
slope = undefined

The slope of a vertical line is undefined.

Now,

From the given table we see that there is a change of 1 for the x-values and a change of -6 in the y-values so,

Rate of change in the table:

= change in y values/change in the x values

= -6 / 1

= -6

Now,

Take any two points on the graph such as:

(a, b) = (4, 6) and (c, d) = (-4, -6)

The slope of the graph:

= (d - b) / (c - a)

= -6 - 6 / -4 - 4

= -12 / -8
= 3 / 2

Thus,

The slope of a vertical line is undefined.

Kayal is correct.

The rate of change in the table is -6.

The slope of the graph is 3/2.

Learn more about slope here:

https://brainly.com/question/26650191

#SPJ5

Mrs. Smith rode the bus 720 miles in 3 days. On the first day, she traveled 3 times as far as she did on the second day. On the third day, she traveled 2 times as far as she did on the second day. How far did she travel each day?

Answers

The first day = 3x

The second day = x

The third day = 2x

720 = 3x + x + 2x

Combine like terms.

720 = 6x

Divide both sides by 6

120 = x

The first day = 3x = 3(120) = 360 miles

The second day = x = 120 miles

The third day = 2x = 2(120) = 240 miles

A 9 foot long section of Kryptonite weighs 1673 pounds. What is the weight of a 1 foot long section of a Kryptonite?

Answers

the answer is 185.9 or rounded up 186

Some of the other shades of paint are more yellow than others. Which mixture(s) are the most yellow? chiesta haces of this paint are more yellow Explain your reasoning.​

Answers

9514 1404 393

Answer:

  2, 5, 6

Step-by-step explanation:

If we number the mixes 1-6 from top to bottom, then the fraction of the total that is yellow is ...

  1. 1/(3+1+2) = 1/6

  2. 2/(5+2+3) = 2/10 = 1/5

  3. 2/(6+2+4) = 2/12 = 1/6

  4. 4/(12+4+8) = 4/24 = 1/6

  5. 6/(15+6+9) = 6/30 = 1/5

  6. 8/(20+8+12) = 8/40 = 1/5

Mixes 2, 5, and 6 are the most yellow.   (1/5 > 1/6)

What is the solution to this equation?
4x=32
O A. X9
O B. x = 28
O C. X = 128
O D. X= 8

Answers

Answer:

4x=32

or,x=32/4

therefore,x=8

Answer:

it is D because you would need to divide both numbers by 4 to get x by itself and 32 divided by 4 is 8 so X=8

Step-by-step explanation:

Hope this helps!!

Solve and graph 8(p+3)>2(4p-1)

Answers

Was my answer correct...!?

Maria took a taxicab from her home to the theater
downtown. The taxicab company charges a flat fee of $5.00
plus $0.25 per mile. Which equation represents C, the total
cost of her ride, in terms of m, the length of the trip in
miles?

Answers

Answer:

The answer is the third option, C = 5 + 0.25m

Step-by-step explanation:

We already know that the official price for the taxi is 5 dollars, so we aren't multiplying that value by anything.

However, the text mentions that for each mile, Maria is taxed an extra .25 cents. Therefore, you have to add the base amount, 5, plus the 25cent with the m next to it to symbolize that however many miles she goes, the 25 cents will be multiplied by that value.

John is saving money for a digital camera
that cost $490. So far, he saved $175. If
he will save $50 per week, how many more
weeks does he need to save to buy the
camera? Which of the following
represents the right inequality?

Answers

Answer

7 weeks

Step-by-step explanation:

$490 - $175 = $315

John needs $315 still for the camera

divdie $315 by $50 and you get 6.3 but because it cant be 6 weeks he would be short $15 you would have to wait an additional week in order to cover the cost of the camera completly.

Brainliest please!!!!

3,269-round to the Nearest hundred

Answers

It would be 3,300 because 6 is greater then 5 meaning you round up.

Use the law of detachment to determine what you can conclude from the given information if three points lie on the same line then they are collinear points A B and C lie on the line M

Answers

Answer: Points A,B, and C are collinear

Step-by-step explanation:

Y’all pls help me i have to turn this tonight

Answers

What’s the rest of the information they’re giving you? Is there an equation you can look at?

whats 9×9 how do you get the answer​

Answers

Answer:

9 × 9 = 81

This is basic 12x12 tables math

Answer:

81

Step-by-step explanation:

you just take 9 and times it by 8 and you get 81

Please help thank you very much!!​

Answers

Answer:

umm...

D...765 4th over 5th


Find the value of x

Answers

[tex]8x + 40 = 120[/tex]

Subtract sides -40

[tex]8x + 40 - 40 = 120 - 40[/tex]

[tex]8x = 80[/tex]

Divided sides by 8

[tex] \frac{8}{8}x = \frac{80}{8} \\ [/tex]

[tex]x = 10[/tex]

Done .....♥️♥️♥️♥️♥️

HELP!!!!! WILL MARK BRAINLIEST 10 POINTS

Answers

Josh is incorrect, he did not examine the expression correctly, therefore his answer was wrong.

Based on the information marked in the diagram, ABC and DEF must be congruent.

True Or False?​

Answers

Applying the HL congruence theorem, the information marked in the diagram cannot be congruent, so it is FALSE.

What is the HL Congruence Theorem?

The HL congruence theorem states that if the corresponding legs of two right traingles are congruent, and the their hypotenuse are also congruent, then the triangles are congruent.

From the information given, we are not told if the hypotenuse of the right triangles are congruent, so we can't apply the HL congruence theorem to prove they are congruent. The answer is FALSE.

Learn more about the HL congruence theorem on:

https://brainly.com/question/2102943

Write an equation in slope-intercept form for the line that passes through (1,-2) and (3, 7)

Answers

Answer:

y=9/2x -13/2

Step-by-step explanation:

i used a calculator i hope its right

What is the slope of the line that contains these points?

(5,-3),(6,-1),(7,1),(8,3)

Answers

Answer:

2

Step-by-step explanation:

slope of line= [tex]\frac{y2-y1}{x2-x1}[/tex]

You can take any two points from the given points, put them in this formula and answer will be 2.

For example:

Lets take (7,1) and (8,3)

Slope= [tex]\frac{3-1}{8-7}[/tex]

=2/1=2

Hope it will help :)

Help? Only right answers get thanks and five stars.

Answers

slope: -3
y-intercept: (0,-2)

What is answer in this question.

Answers

Answer:

A line segment congruent to PQ

Find the equation, function and describe. (100 points)

X
1
2
3
4
5
6
7

Y
5
2.5
1.6667
1.25
1
.83333
.71429

Answers

Answer:

257890 is the function of the equation

Step-by-step explanation:

mark me BRAINLIEST

A fruit bowl contains 2 bananas, 5 oranges, and 4 apples.Using the same fruit bowl, Carol wrote the ratio 5\11 .What could Carol's ratio represent?

Answers

Answer:

5 of the 11 fruit are oranges

Step-by-step explanation:

Answer:

I know who you are your doing a test

Step-by-step explanation:

Alyssa wants to put a wallpaper border around the top of her bedroom walls. Her room is rectangular and is 12ft long, 11 ft wide, and 8 ft tall.

Answers

Answer:

Alyssa needs 1056 cubed feet of wallpaper.

Step-by-step explanation:

Its just 12 times 11 times 8 to find the volume.

Solve the following inequality -9/2x grater then or equal to -1/4

Answers

Answer:

Did you mean [tex]\frac{-2x}{9} ?\\[/tex]

Please clarify so that I can work this problem out for you :)

Step-by-step explanation:

Amy practice yoga 20 minutes each day before school and 30 minutes each day after school she is in school Monday through Friday how many minutes does Amy practice yoga in four weeks please show your work

Answers

Answer:

1000

Explanation:

The equation would be 5(20+30)*4=_____

First, we add 20 and 30 to get 50, now we multiply 5 by 50 to get 250, then multiply 250 by 4 to get 1000.

Can I also get a Brainliest?

Please help me! I really need help with this question!! I need 1-19! I don’t need 2 though

Answers

Answer:

1) 122°

2) 58°

3) 60°

4) 120°

5) 58°

6) 62°

7) 60°

8) 58°

9) 62°

10) 60°

11) 58°

12) 122°

13) 120°

14) 60°

15) 62°

16) 58°

17) 122°

18) 122°

19) 58°

Step-by-step explanation:

Basically Angle Relationships

Each Angle all matches to a different Angle due to their same degree. It is kind of confusing at first but really easy when you understand it and look at it with pacience.

This took so long lol. I really hope it helps! :D

Sloan was told to written paper of a science experiment should Express measurements and leaders 1.26 gallon 11.05 courts 14.2 to cups which shows how to calculate the number of liters he use if he use 5 cups of water divided by 5 4.22 divide 5 by 1.05 or multiply 5 by 1.05

Answers

Answer:

Multiply 5 by 4.22 because 5 cups of water is 4.22 liters

Multiply 5 by 4.22 because 5 cups of water is 4.22 liters.... I think

There are 11 frogs at the pond. There are 5 frogs in the water. The rest are in the mud. How many frogs are in the mud?

Answers

Answer: 6

Reason: 11-5=6

Answer:

This is easy math. 11-5=6. Six frogs are in the water.

Step-by-step explanation:

11 represents the whole of frogs, and 5 represents the frogs in the water.

To find 2.43 x 7.5, multiply__*_. Then, place the decimal point in the product to show
decimal places. PLEASE BRAINILY HELPPP

Answers

Answer:

16.825 is the answer for your question

Qs bisect PQR and MRSQ =71

Answers

Answer: If ∡PQR = 82°, and the ray QS bisects it, it cuts ∡PQR into two equal halves, ∡PQS and ∡RQS, each of which is then 82/2, or 41°.

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