100 POINTS How could you use the Commutative Property of Multiplication to rewrite the expression −21(7)?

A. 7(-21)
B. 21 + (-7)
C. 7 + (-21)
D. 3(7 - 21)

Answers

Answer 1
d would be the best answer choice.
Answer 2

Answer:

D would be best

Step-by-step explanation:


Related Questions

1.Which expression is equivalent to 4 – (- 7)?
Responses

A. -7 - 4

B. 7 + 4

C. 4 - 7

D. - 4 + 7

Answers

B because 4-(-7) equals 11 and 7+4 equals 11 as well

Help Quick Please!!!

Answers

Answer:

can i see the options for the multiple choice ?

Step-by-step explanation:

I’m not sure how to do math :/ I’m like failing my classes

Use the properties of exponents to complete the equivalent expression.

Answers

Answer:

8^14

Step-by-step explanation:

lemme know if im wrong, just tring to help

Answer:

8 to the power of 15

Step-by-step explanation:

the number 8 is still the same but the exponent's are different so the answer would be to just plus them together and get 8 to the power of 15

HelLPPP”””**!!!

MEeEeeee”**!

PLEASEEEEEE””**!!!

Answers

Dude how much homework do u have
First one is >
Can’t see the full picture on the second one. I can answer in the comments if you type the question.

Find the sum.

−10+(−34)

Answers

Answer:

= -4

Step-by-step explanation:

brainliest pls pls pls

don't add links please

Answers

Answer:

It’s C

Step-by-step explanation:

Jane's height to Max's height is in the ratio 4:7. If Max's height is 210cm, what is Jane's height? *

Answers

120

4=?

7=210 then cris cross the answer is 120

Suppose that Jane's height is x cm thus we have :

[tex] \frac{x}{210} = \frac{4}{7} \\ [/tex]

[tex]x = \frac{210 \times 4}{7} \\ [/tex]

[tex]x = 120[/tex]

So Jane is 120 cm .

Amy began with $25 in her bank account and spent $5 each day. Is this function linear or nonlinear? Explain your reasoning.

Answers

Answer: nonlinear

Step-by-step explanation:

Think of it.

She’s spending $5 each time. That would be going down.

So that would be nonlinear

Answer:

linear

Step-by-step explanation:

Because it is a straight line and has a pattern unlike a non linear which wouldnt be following a pattern

what's 3n+1? my teacher asked everyone in his class (including me) and he said it's almost impossible (then he started laughing when we came up with an answer)
why is this?

Answers

Answer:

It is a Collatz Conjecture Problem

Step-by-step explanation:

By definition The Collatz conjecture is a conjecture in mathematics that concerns sequences defined as follows: start with any positive integer n.

It really just requires evenness within the problem.

n (in many cases) is considered infinite

help pls What additional information is required to prove the triangles are congruent using ASA?
Since vertical angles are congruent assume:

Answers

the correct answer for this problem is D

9.6 + 12 3/4 + 7 3/20 +5.5 + 14.5 =

Answers

Answer:

49.5

Step-by-step explanation:

add in place value, and then divide. Hope this helps! Add like terms first.

Answer:

49.5

Step-by-step explanation:

4n^4•2n^-3
Your answer should only contain positive exponents

Answers

The answer is 8n. You can get this answer by multiplying the 4 and 2 first to get 8, then since the bases are the same (both bases are n) you can just add the exponents to get 1. Since n^1 is just n, the answer would be 8n
8n
I had the same question

1/4 times the sum of a number and −3.2 is 1.8

What is the number?

Enter your answer as a simplified mixed number.

Answers

Replace the unknown number as x. You know that (x-3.2)1/4=1.8. Multiply (x-3.2)1/4 by four to cancel out the 1/4 and do the same with 1.8 on the other side. This will leave you with x-3.2=7.2. Add +3.2 to both sides of the equation to cancel out the -3.2 and it leaves you with x=10.4. Your answer is 10.4

The mixed number for the  given case can be obtained as 10²/₅.

How to write a linear equation?

A linear equation for the given case can be written by assuming any variable as the unknown quantity. Then, as per the given data the required operations are done and it is equated to some value.

Suppose the number be x.

Then, the following equation can be written for information given as,

1/4(x - 3.2) = 1.8

It can be solved as,

x - 3.2 = 1.8 × 4

⇒ x = 7.2 + 3.2 = 10.4

It can be written in mixed form as below,

10.4 = 10 + 4/10

⇒ 10 + 2/5 = 10²/₅

Hence, the required number is 10²/₅.

To know more about linear equation click on,

https://brainly.com/question/11897796

#SPJ2

Evaluate the expression for the given values.

8x+2yz, where x=12, y = 4, and z = 2

Answers

Answer:

112

Step-by-step explanation:

8x+2yz is our starting equation

8(12)+2(4)(2) I then substitute the variables for their numbers

96+2(4)(2) I then multiply 8x12, which equals 96.

96+8(2) I now multiply 2x4, which is 8.

96+16 I finally multiply 8x2 which is 16

112 Lastly I then add 96+16 which equals 112.

First, you have to plug in the variables
Here’s how:
8(12) + 2 x 4 x 2
96 + 16 =
112
That’s how you solve it! Hope it helps

Matt purchases a cloth masks for $2.45. He decorates them and then sells them for $4.41. What was the percent markup that Matt used on the cloth masks?​

Answers

Answer; 80%

Explanation below;
Equation;

(Selling price - cost price)
______________________
Cost price

With added values;

($4.41-$2.45)
_____________ = 0.8
$2.45

0.8 as a percentage = 80%

The box plots show the weights, in pounds, of the dogs in two different animal shelters.

Weights of Dogs in Shelter A
2 box plots. The number line goes from 6 to 30. For the weights of dogs in shelter A, the whiskers range from 8 to 30, and the box ranges from 17 to 28. A line divides the box at 21. For shelter B, the whiskers range from 10 to 28, and the box ranges from 16 to 20. A line divides the box at 18.
Weights of Dogs in Shelter B

Which is true of the data in the box plots? Select three choices.
The median weight for shelter A is greater than that for shelter B.
The median weight for shelter B is greater than that for shelter A.
The data for shelter A are a symmetric data set.
The data for shelter B are a symmetric data set.
The interquartile range of shelter A is greater than the interquartile range of shelter B.

Answers

Answer:

A. The median weight for shelter A is greater than that for shelter B.

D. The data for shelter B are a symmetric data set.

E. The interquartile range of shelter A is greater than the interquartile range of shelter B.

Step-by-step explanation:

ty for the ptsss

Answer:

A. The median weight for shelter A is greater than that for shelter B.

D. The data for shelter B are a symmetric data set.

E. The interquartile range of shelter A is greater than the interquartile range of shelter B. ✔ \^o^/

Step-by-step explanation:

For this linear equation, give the number by which you would multiply the terms in each equation in order to eliminate one of the variables. Then solve this system:
5x+2y=-1; 3x+7y=11

This would be a big help if you also include the process to help me understand the answer!

Answers

Answer:

Step-by-step explanation:

The solution to this system of linear equations 3x – 2y = 14 and 5x + y = 32 is (x, y) is (6, 2).

Answer:

Step-by-step explanation:

If we choose to eliminate x, multiply the first equation by -3:  -15x - 6y = 3

and multiply the second by 5:  -15x - 35y = 55

Note that this allows us to eliminate x.  We get:

-6y = 3

-35y = 55

which sum up to -41y = 58.  Thus, y = -58/4.

pls help and only help if you actually know the answer

Answers

Step-by-step explanation:

simple: it will become 3 times 1/9 = 1/9+1/9+1/9 = 3/9 , which will eventually be 1/3, when both numerator and denominator will be divided by thier common factor that is 3

help help help help pls p

Answers

Answer:

10/12 simplified 5/6

Answer:

A) [tex]\frac{5}{6}[/tex]

Step-by-step explanation:

So solve, change the sign into multiplication and use the reciprocal of the second number.

To find the reciprocal,  flip the numerator and the denominator.

The reciprocal of 4/5 is 5/4.

So you have [tex]\frac{2}{3}[/tex]×[tex]\frac{5}{4}[/tex]

Multiply like a normal expression.

You get 10/12, which can be simplified to [tex]\frac{5}{6}[/tex]

A proportional relationship is represented by the equation 2x=18y. If y=kx, where k is the constant of proportionality, then what is the value of k?

Answers

2x=18y
x=9y
x=9kx


k=1/9
k=1/9

2x=18y
x=9y
subsitute x to the other x
y=k(9y)
y/9y=k
y/9y=1/9

Read the statement, and identify the expressions that are equivalent. the product of a number minus 17 and 5

Answers

What is the statement(not stated in the question)?

(n-7)* 5 n=the number*= multiplication

please don't add links.

Answers

Hello there!

Linear functions have a continuous pattern in their x and y values.

Let's see the first table.

0, 1, 2, 3

We add 1 every time.

-3, -2, 0, 3

We add 1, add 2, add 3.

That's not a linear function, because it doesn't have a continuous pattern in its y values.

Let's look at the next table.

0, 1, 2, 3

We add 1 every time.

1, 4, 3, 7

We add 3, subtract 1, add 3

That's not a linear function as well.

Now, let's look at the third table:

0, 1, 2, 3

We still add 1.

2, 0, -2, -4

We subtract 2 every time.

So this is a linear function. Hope this helps!

~Just a cheerful teen

#CarryOnLearning

Answered by

[tex]SilentNature[/tex]

Simple answer linear function



Hope this helps! :)

Which number line best shows the position of square root of 13?

Number line with numbers negative 4, negative 3, negative 2, negative 1, 0, 1, 2, 3, 4 labeled. A dot is made at 1.3 and labeled as square root of 13.
Number line with numbers negative 4, negative 3, negative 2, negative 1, 0, 1, 2, 3, 4 labeled. A dot is made at 2.6 and labeled as square root of 13.
Number line with numbers negative 4, negative 3, negative 2, negative 1, 0, 1, 2, 3, 4 labeled. A dot is made at 3.6 and labeled as square root of 13.
Number line with numbers negative 4, negative 3, negative 2, negative 1, 0, 1, 2, 3, 4 labeled. A dot is made at 4.3 and labeled as square root of 13.

Answers

Answer:

Number line with numbers negative 4, negative 3, negative 2, negative 1, 0, 1, 2, 3, 4 labeled. A dot is made at 3.6 and labeled as square root of 13.

I have to get this done soon, it’s due today in my 5th period!

Answers

1. Is B,C and F 2. Is D 3. Is I think B and C 4. I’m sorry have no idea

Question 3(Multiple Choice Worth 1 points)

(04.04 MC)

An oil company fills 1 over 12 of a tank in 1 over 4 hour with gasoline. At this rate, which expression can be used to determine how long it will take for the tank to fill completely?

1 over 4 ⋅ 1 over 12
1 over 12 ⋅ 4
1 over 4 ⋅ 12
12 ⋅ 4

Answers

Answer:

1/4 ⋅ 12

Step-by-step explanation:

The oil company fills 1/12 of a tank in 1/4 hour (20 minutes) with gasoline.

1/4 ⋅ 12

(time) ⋅ (total tank size)

1/4 • 12 witless be the correct answer

What's 1 + 1 = ?

i forgot-

Answers

Answer:

[tex]2[/tex]

Step-by-step explanation:

[tex]1+1=2[/tex]

Answer:

=2

Step-by-step explanation:

1 + 1 = 2

2 + 2 = 4

1 + 3 = 4

2 + 3 = 5

Halee set up a lemonade and cookie stand at the end of her street. She is selling lemonade for $0.25 per cup and cookies for $0.25 each. She sells 15 cookies and 35 cups of lemonade. Her total sales can be represented by the expression shown.

0.25(35) + 0.25(15)

Use the commutative property to write an equivalent expression.
A) 0.25(15 + 35)
B) 0.25(15) + 35
C) 0.25 + 35 + 15
D) 0.25(15) + 0.25(35)

Answers

Answer:

A!!

Step-by-step explanation:

The awnswer is is A because if they both have parentheses you put the smallest number first then put the big number add the parentheses

Andre was trying to write 7⁷/ 7⁻³ with a single exponent and wrote 7⁷/ 7⁻³ = 7⁴⁻³ = 7¹ Explain to Andre what his mistake was and what the answer should be.

Answers

none me problem careruny.,
Sarah earns $10 each week for weeding the garden. If she saves all of
he money, how many weeks will it take her to save up $150?
(Draw a picture.)
(Write and solve an equation.)
1044-=15

The Green Goober, a wildly unpopular superhero, mixes 3 liters of yellow paint with 5 liters of blue paint to make 8liters of special green paint for his costume.

Write an equation that relates y, the amount of yellow paint in liters, and b, the amount of blue paint in liters, needed to make the Green Goober's special green paint.

Answers

Answer:

y+b=8 liters

3L+5L=8L

Step-by-step explanation:

By adding the 5 nd the 3 you can easily find 8 liters.

3 liters are needed of blue and five of yellow to make 8 liters of green.

Answer:

8g

Step-by-step explanation:

3y + 5b = 8g, your just adding 3 and 5 :))

HELLPPP P MEEEEEEE E PLEASEEEEE E

Answers

Answer:

Step-by-step explanation:

0.000108990512 m-1

372 miles divided by 3 is 124 then you take 124-65.25 = 58.75 or 58 3/4
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