When you learned to add decimals, you saw that lining up the decimal point in the addends is really important. Why do you think it is not necessary to line up the decimal points in the two factors when multiplying decimals?

Answer in 2 complete sentences.

Answers

Answer 1

Answer:

It is not necessary to line up decimals while multiplying because you count the decimals instead of bringing them down. Plus lining up decimals while adding can overcomplicate the problem with too many zeros.

Step-by-step explanation:


Related Questions

Dom has £n. he spends £20. he then looks at a coat that is £100 which is 5 time what he now has left.

Answers

Answer:

Yeah, we can't see the problem.

Step-by-step explanation:

Answer:

120

Step-by-step explanation:

He had 40 to start because he spent 20 and 100 is 5 times how much he has left.

If l || m, m7 = 2x and m2 = x, then what is the measure of angle 2?

90°
30°
120°
60°

Answers

120
Since we first have to find out what x would be in both situations and then do an equation to figure out angle 2

An l || m, m7 = 2x and m2 = x, then what is the measure of angle 2 is 30°.

To find the measure of angle 2, use the properties of parallel lines and transversals.

Given that line l is parallel to line m, and we have two angles formed by a transversal intersecting these lines, angles 2 and 7.

are given that m7 = 2x and m2 = -1.

Since lines l and m are parallel, alternate interior angles are congruent. Therefore, angle 2 and angle 7 are congruent.

m2 = m7 (alternate interior angles are congruent)

Since m7 = 2x,  substitute:

m2 = 2x

But, we are also given that m2 = -1, so set up an equation:

-1 = 2x

Now, solve for x:

x = -1/2

Now that have the value of x, find the measure of angle 2:

m2 = 2x

m2 = 2(-1/2)

m2 = -1

Therefore, the measure of angle 2 is -1 degree. However, it's worth noting that angles are typically measured as positive values, so the answer in this case would be 1 degree (considered as an acute angle). None of the multiple-choice options provided matches this answer exactly, but the closest one would be 30°.

To know more about angle here

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Describe the decimal multiplication equation and product shown by the model. Include details of where each part of the equation is found on the model.

Answers

Answer:

0.010 x 0.090 = 9/10000

Step-by-step explanation:

Solving Multi-Step Equations (Triangle equations) Questions in image.

Answers

Answer: Dont it

Dont get it

Step-by-step explanation:

Soory but we dont get it

Meg will have
1
serving of frozen yogurt for dessert. One serving of frozen yogurt is
3
4
cup. Meg only has a
1
8
cup scoop.

How many scoops should Meg use to get 1 serving?

Answers

Answer:

Meg should use 6 scoops.

3/4 = 6/8

1/8 x 6 = 6/8

hope this helps :)

Well you need to make both denominators equal so you will times 4 x 2 to make it eight and then you also have to times 3 x 2 to make it six so, the answer six

Help pretty please :]

Answers

Answer:

A's wrong.................(I Think)

Step-by-step explanation:

i think its D is B and D the same?

The answer is B. |-322.25| > |-241.75|

please help 20 POINTS

Answers

Exact Form:
35
9
35
9
Decimal Form:
3.
¯
8
Mixed Number Form:
3
8
9
The Answer in simplest form is 3. 8/9

Referring to the figure, find the unknown
length. Write your answer in simplest form.

Answers

Answer:

side b's length would be 24. I hope this helps you! :)

Side b would be 24 hope it helps

NEED MORE HELP LOL fasttt!

Answers

Answer:

B is answer

Step-by-step explanation:

i think so

Write the equation in function form:
9x - 2y = 6

Answers

Yea that’s correct the answer would be 6

Multiply.

(−5.7)(−0.04)

Enter your answer in the box.

Answers

Answer:

Multiply −5.7 by −0.04.

0.228

Step-by-step explanation:

a negative times a negative equals a positive

Answer:

0.228

Step-by-step explanation:

I typed it in K12 and got it correct!

Write an equation of the line through the given points:
(0,2), (3,8)

Answers

Y=2x+2 should be the equation. Do y2 - y1 / x2 - x1 for slope and the y intercept is where every the x coordinate is 0

Answer:

y=2x+2

Step-by-step explanation:

hope this helpssssss

Jake's apple farm has 228 apple trees. Last year, 182,172 apples were produced at Jake's apple farm. If each apple tree produced the same amount, how many apples did each tree produce?

Answers

Answer:

799 apples were produced by each tree.

Step-by-step explanation:

182,172 apples evenly produced by 228 trees.

182,172 apples ÷ 228 trees = 799 apples per tree

799 apples • 228 trees = 182,172 apples

I hope this helps

799 apples were produced

−815x=2.24 helllllllllllllppppppppppppppppp

Answers

Answer:

x= -0.0027484662

Step-by-step explanation:

The anwser is =−0.0027484662

64 is what percent of 80? Tell me how you got it and i'll give brainliest?

Answers

Answer:

80 percent

Step-by-step explanation: ;)

80 percent :) the other person was right!

Angle Q measures 30 degrees. If angle Q is rotated 15 degrees, what is the measure of angle Q′?

Answers

30°

an angle has the same measurement no matter what direction you rotate it

30 degrees hope this helps!

Please help and explain how to do this math problem. :c

Answers

The answer would be mode= 16, Median= 16, mean=16.91, range=8. The mode is which number on the number line has the most dots on it, in this case it’s 16. For the mode you would go from side to side and cross each dot off till you reach the middle. And once again in that case it’s 16.
mode = 16 median = 16 mean =16.9 and range=8.

a girl scout has (5x-12) boxes of cookies and sells (3x+18) of them. Write an expression to represent the amount of boxes she has left. i need help.

Answers

Answer:

2x - 30

Step-by-step explanation:

You have to subtract 3x + 18 from 5x - 12:

=> 5x - 12 - ( 3x + 18) = 5x - 12 - 3x - 18 = 5x - 3x - 12 - 18 = 2x - 30

The first step was to apply distributive properties to get rid of the parenthesis, after that the terms were arranged and the like terms combined

Answer = 2x - 30

(5x-12)-(3x+18)

Simplified becomes 2x-30

helllpppp I need to get my grade up to a B by Thursday!!

Answers

Answer:

Less than

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Answer:

Less-than

Step-by-step explanation:

Compare the emergence of advanced civilizations in Meso and South America with the four early river valley civilizations.

Which of the following systems of trade was most widely used in both ancient river civilizations and ancient Native American civilizations?

bartering
the exchange of coined money
free exchange
international trade

Answers

Answer:

Bartering

Step-by-step explanation:

Hope this helps!

A newspaper reports the following changes in the temperature of a city over 4 days:
2.64 degrees Celsius, negative 2 over 9 degrees Celsius, −0.35 degrees Celsius, 5 over 8 degrees Celsius

Write an expression to show the average daily change in the temperature of the city.

Write the steps to solve the expression. Round your answer to the nearest hundredth.

I kind of know what I’m Doing here but I want to make sure. In simple terms can someone show me a few ideas for exspressions and how to solve each one?

Answers

Answer:

I thought I answerd this one

Which number sentence represents the Commutative Property of Addition?


44 + 1 = 45
44 + 1 = 45

(16 + 2) + 18 = 16 + (2 + 18)
(16 + 2) + 18 = 16 + (2 + 18)

56 + 0 = 56
56 + 0 = 56

32 + 9 = 9 + 32

Answers

32 + 9 = 9 + 32 is the answer

The number which represent represents the Commutative Property of Addition will be;

⇒ 32 + 9 = 9 + 32

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expressions are,

44 + 1 = 45

44 + 1 = 45

(16 + 2) + 18 = 16 + (2 + 18)

(16 + 2) + 18 = 16 + (2 + 18)

56 + 0 = 56

56 + 0 = 56

32 + 9 = 9 + 32

Now,

We know that;

The rule of the Commutative Property of Addition is,

⇒ a + b = b + a

Hence, The correct number which represents the Commutative Property of Addition is,

⇒ 32 + 9 = 9 + 32

Learn more about the mathematical expression visit:

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Which graph represents a linear function?
On a coordinate plane, a parabola opens down.
On a coordinate plane, a line has a negative slope.
On a coordinate plane, a line curves up.
On a coordinate plane, a line curves down, levels off, and then curves down.

Answers

Answer:

On a coordinate plane, a line has a negative slope

Step-by-step explanation:

A linear function is a function whose graph is a straight line. For example, y = 3x - 2 represents a straight line on a coordinate plane and hence it represents a linear function.

Answer : on a coordinate plane, a line has a negative slope. the second one

a carpenter goes through 2 3/5 boxes of nails finishing 3 1/2 rooves. How much would he use finishing 8 rooves?​

Answers

Answer: 2 3/5

Step-by-step explanation:

To find roofs per box, divide the # of roofs by the # of boxes.

Answer:

okay sorry but its roofs, not rooves but the answer is

Step-by-step explanation:

2 3/5 divided by 3 1/2 which equals 13/5 divided by 7/2

13/5 times 2/7, which equals  26/35.  This stands as 26/35 box of nails per roof. Altogether you get 5.94, which you would have to round to about 6 boxes.

Im super sorry if this is wrong

What is x+y=5 solved and graphed????
I need help, please!

Answers

Answer:

The answer is y=5−x and to graph it on a graph it is (0.5) and (5.0)

Step-by-step explanation:

I took the quiz

x+y=5 !!!!!!!!!!!!!!!

Help this I don't understand pls help

Answers

Answer:

Please refer to the attached photo.

Put it from least to greatest
23. -3,2,0
24. -4,-1,0
Than place the numbers in the exact order from least to greatest
(Hope this helps)

Hey can some one help me with this problem :'))

Answers

1/2 • 3/4

You have 1 top half filled in and 3 of the 4 blocks on the base filled in

Answer: 1/2x3/4

Step-by-step explanation:

Select all expressions equal to -2.

Answers

Answer:

It would be C and D

Step-by-step explanation:

A. Would be positive b/c a negative divided by a negative is a posititve

B. Would be -1/2

C. Is -2

D. Is -2.

Hope this helps!

Answer:

D and C

Step-by-step explanation:

A= -6

B= -0.5

C= -2

D= -2

Thanks to everyone who helped me with the previous questions
Last question:

Answers

Answer:

y=-3x+7

Step-by-step explanation:

Rise/run

To find slope you can use the rise/run strategy. You count how many units up/down and then how many right/left. between each point on the line, it was down 3 units, right 1 unit (3/1) and since it was going down it would be negative.

As for the y-intercept, you look at where the line crosses the y-axis. In this case it was at (0,7), so the answer would be 7.

Plug your answers in and your equation should be y=-3+7.

You could also do y=7-3x, its the same equation but reversed, so you'll get the same line.

Hope this helps :)

What is the least common denominator for the fractions 16and34?


8

12

18

24

Answers

I believe the answer is 4
The least common denominator for 1/6 & 3/4 is 12.
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