Does anyone have any ideas for multiplying 249 times 398 quickly and mentally? Everything online is too complex.

Answers

Answer 1

Answer:

So, the first solution is a calculator but sometime we don't have a calculator so, do

200 X 300 = A

40 X 90 = B

9 X 8 = C

then add just do multiplication from there like

A + B = D

D + C = E

Then your finally answer would be E

Hope that helps that's the way I do math quick in my head

(Btw the answer to 249 X 398 = 63,672 )

Answer 2
First do 2times3 and then add 4 0’s because they are in the hundreds place and each of them have 2 0’s then do 9times4 and add 2 0’s to the answer and then do 9times8 add up all the answers :)

Related Questions

ANSWER THIS YOU GET 10 POINTS

Answers

Remember PEMDAS (Order of Operations)

first you take the (1+2) and add them together

then remove the brackets and since the 3 is infront of the 2 they will multiply

the equation looks like this

6/2x3 now answer it from left to right.

the answer becomes 9

A panel of judges was asked to judge the quality of different kinds of potato chips. The relationship between their ratings and the price of the chips is shown in the scatter plot below.


Which of the following is the best estimate of the average change in ratings that is associated with a $1 increase in price?

Answers

what is this I have the same problem what's the answer

Answer:

2.5

Step-by-step explanation:

[[Please explain]] The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the spring stretches 9 centimeters. Which equation relates the mass of the object, m, and the length of the spring, s?
O s=3/10m
O s=10/3m
O s=3/10s
O s=1/30s

Answers

Answer:

The required equation is [tex]s =\frac{3}{10} m[/tex]

Step-by-step explanation:

Given: The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the spring stretches 9 centimeters.

To find : Which equation relates the mass of the object, m, and the length of the spring, s?

Solution :

Let the mass of the object  m,

Length of the spring s,

When a 30-gram object is attached, the spring stretches 9 centimeters.

i.e, the times length of the object is attached to spring is The length of a spring varies directly with the mass of an object that is attached to it.

According to question,

i.e, length of the spring is 3 by 10 times the mass of the object.            

Therefore, The required equation is

can someone pls help me with this i cqnt do it right and ive been trying for 1 hour and 35 min HELPPP MEEEE!!

Answers

The answer is 19 and the remainder is 1

Answer: 19.25

Step-by-step explanation:

the answer is in the attachment

19= X+5*Z-12

what is X and Z?

Answers

Answer:

X = -5Z + 31

Step-by-step explanation:

Subtract 5Z5Z from both sides.

19 - 5Z = X - 12

19 − 5Z = X − 12

2 Add 1212 to both sides.

19 - 5Z + 12= X

19 − 5Z + 12= X

3 Simplify  19-5Z+1219−5Z+12  to  -5Z+31−5Z+31.

-5Z + 31 = X

−5Z + 31 = X

4 Switch sides.

X = -5Z + 31

X = −5Z + 31

Answer:

19=x+5*z-12

19+12=x+5*z

31=x+5*z

then x=26 z=1

A business owner receives a 5000 loan with 13% interest, charged at the end of each year​
what she got in the 2 and 3 year

Answers

2 year 3700 and 3050 3 years

Answer:

2 years,3700,3050 and 3 years

Step-by-step explanation:

David wants to purchase some pens. The pens he likes cost $2 each, not including tax. This is represented by the graph below.

Write an equation for the graph of the line.

Answers

Answer:

Step-by-step explanation:

Y = 2x is it I’m pretty sure

Ill give brainiest to whom ever gets this correct.

Answers

Answer:

50.2

Step-by-step explanation:

Area=π×r2 =π×(4 cm)2 =16π)cm2≈50.24 cm

Answer:

A. 12.6 meters squared.

Step-by-step explanation:

45,747 divided by 9=

Answers

The Answer is 5,083.

Hope this helps!

Answer:

5083

Step-by-step explanation:

what is 2 3/5 divided by 2/7

Answers

Answer:

9 1/10

Step-by-step explanation:

The Answer is 9 1/10, or 91/10.

Hope that helps! ☺️

8x-3=15x+18
a-x=-3
b-x=3
c-x=2.1
d-x=.9

Answers

it’s x=-3 , hope I helped lol
It’s x=3 hope it’s right I did it and got it right

Which size bottle of ketchup is the best deal with the lowest unit price?

Answers

Answer:

I think the best deal would be 14 oz

explanation:

The 10 0z, 1 oz would be equal to 25 cents and when you add 4 oz the price would have been 3.50 if it was going off of the same ratio as the 10 oz bottle. the 16 oz bottle is the same ratio as the 10 oz bottle and the 18 oz bottle would be 30 cents per oz.

Given the equation y = 3x − 4, what is the value of y when x = 4
A)2
B)4
C)8
D)10

Answers

Answer:

C)8

Step-by-step explanation:

Plug in 4 for x and then solve

Awnser is C or 8, if you put 4x3=12 - 4 it = 8

Answer 3-12 please, thank you!

Answers

The answer is nine, 9 + 3 = ( equals ) 12 so weather subtract, or adding, you will get the same answer <3

What is the slope of the line y=35x+7 ?

Answers

Answer:

Slope is 35

Step-by-step explanation:

Answer: slope is 35

 y-intercept: (0,7)

Step-by-step explanation:

Help me and get brainliest!!!!

Answers

Answer:

tamara runs 5 miles each week : y=5x // proportional // graph starts at 0 and has constant incline of 5/1

Tamara runs 5 more mins more then she walks each day: y=+5 // graph starts at 5 // not proportional

Step-by-step explanation:

Yeah what the guy above me said

In your own words, explain to me what is absolute value? . Make sure to talk about the definition of it, how you find it, and how it's different from just plotting an integer on a number line. You must provide 3 sentences or more.

Answers

Answer:

Absolute Value Is Pretty Simple Actually In Middle School Math. Absolute Value Refers To The Numerical Difference From 0 To The Integer. To Find Absolute Value All We Have To Do Is Find The Difference From 0 To The Number. For Example -9 The Absolute Value Is 9 Because On A Numberline There Are 9 Spaces Between 0 and -9 and +6 Is 6.

(This Is How We Learned It In Middle School There Is A Higher Level To This Tho)

Please help me
Triangle OLD has vertices at (-2,1)and(8,-3). Triangle NEW represents a dilation of triangle OLD. if the vertices of triangle NEW are located at (-4/3,2/3) (4/3,4) and (16/3,-2) which of the following represents the dilation that transforms triangle OLD to triangle NEW?

A. (x,y)=(4/9 x, 4/9 y)
B. (x,y)=(x+2/3,y-1/3)
C. (x,y)=(4/3x,4/3y)
D. (x,y)=(2/3x,2/3y)

Answers

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which expression has a value of 6 when x=2 and y=4?

Answers

B
refer to picture for steps
Answer:6Verification:

Let's verify all the options to the question. Clue given: x = 2, y = 4

Option A:

(x² + 8) ÷ y - 2

=> (2² + 8) ÷ 4 - 2

=> (4 + 8) ÷ 4 - 2

=> 12 ÷ 4 - 2

=> 3 - 2

=> 1 ≠ 6

This answer does not equal 6.

Option B:

(x² + 8) ÷ (y - 2)

=> (2² + 8) ÷ (4 - 2)

=> (4 + 8) ÷ (4 - 2)

=> 12 ÷ 2

=> 6 = 6

This answer is correct as 6 = 6.

Option C:

x² + 8 ÷ (y - 2)

=> 2² + 8 ÷ (4 - 2)

=> 4 + 8 ÷ 2

=> 4 + 4

=> 8 ≠ 6

This answer does not equal 6.

Option D:

x² + 8 ÷ y - 2

=> 4 + 8 ÷ 4 - 2

=> 4 + 2 - 2

=> 4 ≠ 6

This answer does not equal 6.

So, after verifying all our options, we can conclude that Option B is correct. Therefore, Option B is the correct answer.

Rewrite the phrase "two less than a number" as a variable expression. Explain how to evaluate it when n=5.

Answers

Answer:

n-2

Step-by-step explanation:

n=5 so the new equation is 5-2=3

Answer: N = 2 explanation: 5-2=3

..... i need help with these 3 questions Q^Q

Answers

Answer:

3/5(x-8)-y = D

Step-by-step explanation:

3/5 (15-8)-1/10

= 41/10 or 4.1

First picture is D
I don’t know the second
Third picture is 5/8

Show work please!
An auto insurance company pays 12%
commission to its agents for each new insurance policy they sell. How much commision does an agent make on a $1,000 policy?

Answers

Answer:

$120.00 commission

Step-by-step explanation:

1000 X 0.12 = 120

An agent makes 120$ commission

Kala invested $8000 in a fund for 6 years and was paid simple interest. The total interest that she received on the investment was $2400. As a percentage, what was the annual interest rate of her investment?

Answers

Answer:

33.3%

Step-by-step explanation:

8000 divided by 2400 is 3.33

3.33 x 10 is 33.3 to make it out of 100%

so she gets one third of her investment

. Ava makes bead necklaces. She has a total
of 6,048 beads. Each necklace has 24 beads.
Her friend Maria says that the greatest
number of necklaces she can make with the
beads is 162.

Explain why Maria’s answer is incorrect and
how she can find the correct answer.

Answers

By this point I’m sorry that you have been

it's systems of linear equations btw

Answers

Each child ticket is 7$ and senior is 5$ and is this question from a packet? Bec I found the whole answer key online and I can send it to u if u want

Mrs. Kvitova earns $78,00 annually. If her state income tax is 3.8% how much does she owe per month for state income tax

Answers

The answer would be $2,052.
78,000 x 0.038 = 2,964
2,964 / 12 = 247
Is she owes $247 monthly

What is the value of the expression?
-
olur
1 5
3 6
5
6
Enter your answer in simplest form.

Answers

Answer:

2

-1 5

Step-by-step explanation:

1 5 1

3 6 = 1- 2

2

-1 5

Good luck :)

what is the slope on an equation

Answers

Answer:

Formula

Slope of a line

Once your equation is in slope-intercept form: "y = mx+b", the coefficient of "x" (the "m") is the slope. The constant (the "b") is the y-intercept at (0, b).

Step-by-step explanation:

slope= dy/dx

=y2-y1/x2-x1

Does a proportional relationship occur for addition and subtraction or only for multiplication and division?

Answers

Follow lyricalcosplays on TikTok!! X

Answer:

I am pretty sure it is with all of them

Step-by-step explanation:

Which planet has the third coldest temperature? *

A. Jupiter
B. Saturn
C. Uranus
D. Earth

Answers

According to this is should be Saturn

Answer:

I believe it's Uranus but I'm not an astronomer so I'm not completely sure about my answer.

Step-by-step explanation:

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