Mathematics Middle School

Angela ordered 2 glass paperweights. The volume of each paperweight is 5 cubic inches, and the density of the glass is 1.5 ounces per cubic inch. Angela can use the calculation below to find the total weight of her order.

2×(5×1.5)

How can Angela simplify the calculation using only the associative property of multiplication?

Answers

Answer 1
The associative property states that you can multiply numbers no matter how they're grouped, meaning that we can erase the parenthesis and make it 2*5*1.5. That way, it's easier to figure out 2*5*1.5 than 5*1.5 first then that multiplied by 2. 
Answer 2

Answer:

(2 times 5) then times 1.5

Step-by-step explanation:

i took K12 test

Related Questions

what is the volume in cubic yards of a greenhouse that is 20 ft long, 15 ft wide, 10 ft high

Answers

the answer to your question is 3000
The answer is 3000 because you have to multiply all the numbers

What question is equivalent to 0.83

Answers

if you want a question:

1 - 0.17 = 0.83

0.50 + 0.33 = 0.83

really, all you have to do is come up with a equation that equals to 0.83

hope this helps

Decimals between 5.1 to 5.2

Answers

There are an infinite number of decimals between 5.1 and 5.2, 5.11,5.11111111111111.
It very simple. There are multiple choices. 1.12, 1.13 ,1.14, 1.15, 1.16, 1.17 ,1.18, 1.19, 

explain the simplified form of 3abc/abc when abc doesn't equal zero?

Answers

Dividing abc, which is a*b*c, we get 3*a/a*b/b*c/c=3

Find the percent error of the measurement 7 cm.

Answers

The answer is 7.14 :)

Answer:

The percent error of the measurement 7 cm is 7.14%.

Step-by-step explanation:

Given : Measurement 7 cm

To find : The percentage error of the given measurement.

Solution :

First we find the error in the measurement.

Measuring to the nearest centimeter means the true value could be up to half a meter smaller or larger.

i.e It is upto 0.5 (between 6.5 and 7.5)

Measurement - 7 ±0.5 cm

Absolute Error = 0.5 cm  

Relative Error = [tex]\frac{0.5}{7}=0.0714[/tex]

Percentage Error =  [tex]0.0714\times 100=7.14\%[/tex]

Therefore, The percent error of the measurement 7 cm is 7.14%.

An angles measure is 6 degrees more than 3 times the measure of its complement. Find the measure of the angle.

Answers

Let X be the angle
Let it's complement be 90-x

x = 3(90-x)
x = 270-3x
4x = 270
x = 67.5 degrees

Hope that helps
If you have any questions feel free to ask :)
-Asmaa

If bob has 50737$ and spends 500658. Is this possible?

Answers

only if the last digit is cents
:)

Ms.Phipps made 12 dolls for gifts this year. She made 4 1/2 times that number last year. Find the total number of dolls she made this year and last year.

Answers

54 dolls were created this year and last year


12 x 4.5 = 54 

54 last year
12 this year

Markers come in boxes of 10. A case of markers has 200 boxes.Howmany boxes of markers are in one case?

Answers

So you have boxes of 10. A case holds 200. So you can take 20*10 = 200 

20 boxes of markers are in one case

the way I would find the answer is I would divide 200 by 10, which is 20.

Which statements about quadrilaterals are true? Choose all answers that are correct. A. A square is always also a parallelogram. B. A parallelogram is always also a rectangle. C. A rhombus is always also a trapezoid. D. A rectangle is always also a parallelogram.

Answers

The answer is D because the qualities of the rectangle is the same as a parallelogram.
D is the answer i got D to

One package of fruit drink contains 6 drinks. Which of the following list the ordered pairs (packages, number of drinks) for 1, 2, 3, and 4 packages of fruit drinks?

Answers

I think this is 

(1,6), (2,12), (3,18), (4,24)

1 package has 6 drinks so that = (1,6)

 then multiply 6 by the number of packages for total number of drinks

 so you end up with (1,6) (2,12) (3,18) (4,24)

14 meters per second to centimeter per minute

Answers

1 meter - 100 cm

14 x 100 = 1400 cm per second

60 seconds per minute

1400 * 60 = 84,000 cm per minute

partial product 342 x 405

Answers

342 times 405 is 138,510.
The answer would be 138510

Simplify. 4−8÷2+3

Please help me with this problem.

Answers

PEMDAS says the first thing you need to do is division:

4 - 4 + 3

Then, do subtraction and addition from left to right:

0 + 3
3

Hope this helped!

Use muliplaction and the distributive property to find the quotient : 184 divided by 8??

Answers

The solution to 184 divided by 8 is equal to 23.

What is a quotient?

In Mathematics and Geometry, a quotient is a mathematical expression that is simply used to represent the division of a number (numerator) by another number (denominator).

Based on the information provided above, we can logically deduce that the following mathematical expression would represent the "the quotient for 184 divided by 8;"

Expression: 184/8

Solution: 92/4

Solution: 23

Read more on quotient here: brainly.com/question/748723

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-2/3y - 3/4=5 I am very confused

Answers

-2/3y - 3/4 = 5

Add 3/4 to both sides.

-2/3y = 5 + 3/4

Simplify.

-2/3y = 5 3/4

Multiply both sides by -3/2.

-3/2 × -2/3y = 5 3/4 × -3/2

Simplify.

y = 23/4 × -3/2

Simplify.

y = -69/8 AND y = -8 5/9

~Hope I helped!~

Jackson says he has an odd number of model cars.he has 6 cars on one shelf and 8 cars on another shelf. Is jackson correct? Explain

Answers

No he would be incorrect because if you add 6 and 8 you get 14 and 14 is an even number. I hope this helps!

Find last​ year's salary​ if, after a
2% pay​ raise, this​ year's salary is
$38,760.

Answers

Your answer would be $37,984.8

there are 36 roses and 27 carnations. anna is making flower arrangements using both flowers, if she made the maximum number of arrangements, how many carnations would be in each?

Answers

Anna can make 9 arrangements. Each has 3 carnations (27 ÷ 9 = 3).

To determine how many carnations would be in each arrangement if Anna made the maximum number of arrangements, we need to find the greatest common divisor (GCD) of 36 and 27.

The GCD of 36 and 27 is 9.

So, Anna can make a maximum of 9 flower arrangements using both roses and carnations.

To find out how many carnations would be in each arrangement, we divide the total number of carnations (27) by the number of arrangements (9):

27 carnations ÷ 9 arrangements = 3 carnations in each arrangement.

Therefore, if Anna made the maximum number of arrangements, there would be 3 carnations in each arrangement.

Can someone explain domain and range?

Answers

Domain generally represents x and range y

The domain of a function is the complete of possible values of the independent variable. Range: the set of all output values of a function.

What does "how many" mean in math?

Answers

Like, how many cars are in a line or how many fruits did this person eat.
"How many" in Math is asking for the amount of something. For instance, of there are 5 soccer balls and the problem asks, "How many soccer balls are there?", you would answer with the amount of soccer balls: 5.

how do u answer this?

Answers

there are also 6 possibilities because the die has six sides with 1 different number on each.
If you are tossing a fair die, you have 6 sides.
For this problem, you are trying to find the probability of tossing a '6' on a fair die (6 sides). 

P(6) = 1/6

Is the square root of 140 approximate to 10.7

Answers

The square root of 140 is 11.83, so no 10.7 is not approximate.

explain in your own words what the mean of a negative exponent means?

Answers

A negative exponent is the opposite of a regular exponent so for example, 5 to the power of -3 is 1/125 

how to simplify this

Answers

Factor it out.
Both exponent cancel out each other which equals 1.

Which is the better buy 3 pounds for 8.31 or 5 pounds for 12.95

Answers

answer:

5 pounds for 12.95

explanation:

to solve, find the unit rate. the cheaper unit rate is the best and cheapest choice.

8.31/3 = 2.77
12.95/5 = 2.59

5 pounds for 12.95 is the cheaper choice because it has a smaller unit rate.

Hope this helps! :D
It'd be better to buy the 5 pounds for 12.95.

If you divide the price by the amount, it results as 2.59 as opposed to 3 pounds for 8.31 which is 2.77 per pound, making it clear now that the 5 lb for 12.95 is the better deal

Is the value of the 1 in 1,440,000 10 times as great as the value of the 4 in the hundred thousands place?

Answers

If you multiply 400,000 by 10 you get 4,000,000. This means that, yes, the value of the 1 is 10 times the 4 in the hundred thousands place. 
Hope I helped :)
Final answer:

The value of the 1 in the number 1,440,000, which is in the million's place, is 2.5 times greater than the value of the 4 which is in the hundred thousand's place.

Explanation:

The value of the 1 in the number 1,440,000 is in the millions place, thus it represents 1,000,000. The 4 on the other hand, is in the hundred thousands place, and thus represents 400,000. The value of the 1 is therefore not just ten times the value of the 4, but in fact, it is 2.5 times greater.

Here is the process: value of 1 = 1,000,000, value of 4 = 400,000, so 1,000,000 / 400,000 = 2.5. Therefore, the value of 1 is 2.5 times the value of 4.

Learn more about Place Value here:

https://brainly.com/question/35447631

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What is the value of 11−3m , when m = 2? (Please do it step by step because I dont know how to do this ;[ )

5

6

10

12

Answers

Substitute the variable for the value given.

11 - 3m becomes 11 - 3(2)

Now do the order of operations.

11 - 3(2) =
11 - 6 =
5

So, the answer is 5.

simplify |-7.5| - |10.3|

Answers

|-7.5| - |10.3| = 7.5 - 10.3 = -2.8
|-7.5|  = 7.5
|10.3| = 10.3

Answer is 7.5 - 10.3  = -2.8

X=b-cd,c
Solve for c

Answers

Is it just x=b-cd
If so
cd=b-x
÷d. ÷d
C=b-x/d
x = b - cd

b - cd  = x

- cd = x - b 

-c  =  x - b  /  d

c  = -x + b / d 
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