7. Below are the steps taken to simplify the expression. Which justification matches Step c of the simplified expression? *

7x+8y+5x+3(y+1)

a. 7x + 8y + 5x + 3y + 3
b. 7x + 5x + 8y + 3y + 3
c. (7x + 5x) + (8y + 3y) + 3
d. 12x + 11y+ 3

A. Associative Property of Addition

B. Commutative Property of Addition

C. Combine Like Terms

D. Distributive Property​

Answers

Answer 1

Answer:

A. Associative property of addition

Step-by-step explanation:

The associative property is about the grouping of terms/numbers in parentheses in an equation.


Related Questions

Find the value of x and y. This has to do with geometry

Answers

Answer:

x = 30°

y = 30°

Step-by-step explanation:

By inscribed angle theorem:

[tex]x = y = \frac{1}{2} \times 60 \degree \\ \\ x = y = 30 \degree[/tex]

OMG?!?!?!!?! HELP!!!?!?!?! PLEASE !?!?!? Thanks to those who do :D <3
A pump can fill 1800KL tank in one hour. How long would it take to fill a 90 KL tank?

Answers

20 hours because 1800/90=20

A rectangle has vertices at P (16,16), Q(16,-16), R(-16,-16) and S(-16,16). The origin is the center of dilation and the rule of a dilation is (x,y)→(1/4x, 1/4y) What is P' of the dilated image, PQ’R’S’?

Answers

Answer:

(4, 4)

Step-by-step explanation:

So you're trying to find what P' is, and P' would be the dilation of P. This means that you apply the rule (x, y) --> (1/4x, 1/4y) with the coordinate point (16, 16). This would be:

(16, 16) --> (1/4 * 16, 1/4 * 16) = (4, 4)

A rocket is fired directly upwards with a velocity of 80 ft/sec. The equation for its height, H, as a function of time, t, is
given by the function
H (t) = -1612 + 80+
Find the time at which the rocket reaches its maximum height, and its maximum height.
5
a) O time =
22
sec, max height = 200 ft
b) O time = 80 sec, max height = 100 ft
5
c) O time =
2
sec, max height = 100 ft
d) O time = 5 sec, max height = 200 ft
5
e) Otime = sec, max height = 400 ft
23
Revie

Answers

Answer:

(c).

Step-by-step explanation:

h(t) = - 16 t² + 80 t

Coordinates of the vertex are:

t = - [tex]\frac{80}{2(-16)}[/tex] = [tex]\frac{5}{2}[/tex] = 2.5 sec.

h = - 16(2.5)² + 80(2.5) = - 100 + 200 = 100 ft.

CAN ANYONE PLEASE HELP ME?.......

Find P(4).

A. 1/8
B. 1/4
C. 1/2​

Answers

It’s C because I got an A on that quiz and it was pretty hard

Answer:

A. 1/8

Step-by-step explanation:

n(4) = 1

n(S) = 8

p(4)= n(4)/n(S)

=1/8 Ans.

(40 POINTS!!) solve for x

Answers

Answer:

do 13+7 you will have your answer. (go down for answer)

Step-by-step explanation:

its 20

7. In the figure, AABC-AXYZ. What is the perimeter of AABC? Show your work.

Answers

The answer would be 36

ASAP I WILL GIVE BRAINIEST IF ANSWERED ASAP!! PLEASE PLEASE HELP

Answers

Answer:

2x + 3 =84

Step-by-step explanation:

Answer:

2x + 3 = 84

Step-by-step explanation:

2/6+1/4
Show work please
And no links

Answers

Answer:

7/12

Step-by-step explanation:

1/3+1/4

convert to twelfths

4/12+3/12

7/12

Answer:

7/12

Step-by-step explanation:

2/6 + 1/4

Change the denomintors to be alike  (Change the denominators to 12) 4/12 + 3/12

Multipy the top and bottom  

Add

Get 7/12

Brainliest?

I NEED HELP FAST! Which of the following sets of numbers could not represent the three sides of a triangle?

Answers

Answer:

(8, 23, 31)

Step-by-step explanation:

The sum of the lengths of the two shorter legs must be greater than the length of the longer leg

(not equal to either)

if a state issued license plates using the scheme of one letter followed by five digits, how many plates could it use

Answers

Answer:

786240 different license plates.

Step-by-step explanation:

The required number of plates that can be used is 2,599,974.

Given that,
State-issued license plates use the scheme of one letter followed by five digits, how many plates could it used is to be determined.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,
Maxium five-digit number = 99999
Total letters = 26
Number of plates = 26 × 99999 = 2,599,974

Thus, the required number of plates that can be used is 2,599,974.

Learn more about simplification here:

https://brainly.com/question/12501526

#SPJ2

55 people showed up on a party.There were 3 less women than men.how many men were there?​

Answers

Answer:

52

Step-by-step explanation:

55 - 3 = 52

give me brainiest wink wink

29 men

Set up a system of equations. If w is the number of women and m is the number of men, we know that w+m=55, and that w=m-3. If you solve this, you get that m-3+m=55 → m=29.

Item 8
Select the cone(s) that are similar to a cone with a height of 9 meters and a radius of 3 meters.

cone with a height of 15 meters and a radius of 6 meters

cone with a height of 12 meters and a radius of 4 meters

cone with a height of 6 meters and a radius of 3 meters

cone with a height of 3 meters and a radius of 1 meter

Answers

Answer: 12 meters

hope that helped

What does 3 to the power of 2 minus 4 times 2 plus 6

Answers

Answer:

7 is the answer

Step-by-step explanation:

Answer:

This equals 7

Step-by-step explanation:

I used a calculator

Can I have brainliest pls

Will give brainly Simplify 5/10

Answers

1/2 , 5 is half of 10 and if you divide each number by 5 you get 1/2

Rosaria filled some cups with different amounts of water, as shown below.Red cup: 0.046 liters
Blue cup: 0.05 liters
Green cup: 0.20 liters
Yellow cup: 0.6 liters witch one

Answers

Answer:

Green cup: 0.20 liters

Step-by-step explanation:

The radius of a circle is 3.9 in. Find the circumference to the nearest tenth.​

Answers

Answer:

24.5

Step-by-step explanation:

The region bounded by the given curves is rotated about the specified axis. Find the volume of the resulting solid by any method. y2 − x2 = 4, y = 3; about the x-axis

Answers

Step-by-step explanation:

it actually equals 3 you x=+_√7 buy washing method

Simplify the following expression completely, where x 20.
x5xy* + 405x’y* - 180x’y4
O xy2 5x + xy? V405x – xy2/80x
0 6xyV5x
-3xy 5x + xy? J405x
O 6xy ſ5x}

Answers

Answer:

Option B is your answer

Step-by-step explanation:

hope it helps

have a great day!!

Answer:

A.) -80X^8 + 40x^7 -5x^6 -3x^2

Its OPTION A

Step-by-step explanation:

w
The table below lists the means and standard deviations for 5th graders in the district and for the norm group for
student performance in four different subjects. According to the table, the performance of the 5th graders in the
district is more variable than that of the norm group in which subject(s)?
ed
ati
n
100
Sc
Geography English Spelling Science
Mean of all 5th graders in District (150 students) 75
125 90
SD of these 5th graders
12
10 12 20
Mean of the Norm Group
85
100 120 90
SD of the Nom Group
10
10 15 15
ww
sti
20
ker
ndo
ted
Geography, Spelling, and Science
Geography and Spelling
Geography and Science
Spelling only
Science only
Geography only
lccr
Sa
le au
isid

Answers

Answer:

Can you please format this? it's hard to understand right now

Which one was the answer A,B,C or D?

Answers

Answer:

A

Step-by-step explanation:

A answer is a

step by step

What is the inverse operation needed to isolate the variable 4 = p - 8

Answers

It’s addition

If you want I can explain it to you in the comments

Answer:

To do this you need to add both sides by 8. yw

Step-by-step explanation:

A study of drive-thru wait times for fast-food restaurants found that the average time spent Wendy's drive-thru was 138.5 seconds. Assume that drive-thru wait times are normally distributed with a standard deviation of 29 seconds, A Wendy's owner wants to give a free Frosty to customers who have an unusually long wait in the drive-thru.
The length of time the owner should choose so that only 0.75% of customers get a free Frosty i.e. only 0.75% wait longer than ________ seconds) is _________ seconds (give your answer to 2 decimal places).

Answers

Answer:

207.72 seconds.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean waiting time of 138.5 seconds, standard deviation of 29 seconds.

This means that [tex]\mu = 138.5, \sigma = 29[/tex]

The length of time the owner should choose so that only 0.75% of customers get a free Frosty i.e. only 0.75% wait longer than

The 100 - 0.75 = 99.15th percentile, which is X when Z has a pvalue of 0.9915, so X when Z = 2.387.

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]2.387 = \frac{X - 138.5}{29}[/tex]

[tex]X - 138.5 = 2.387*29[/tex]

[tex]X = 207.72[/tex]

So the answer is 207.72 seconds.

4. Tori bought x shares of Mattel stock for m dollars per share. She sold
all of the shares months later for y dollars per share. Express her cap-
ital gain or loss algebraically.

Answers

Answer:

mx = y

or

y = mx

Step-by-step explanation:

If she pays m per share, and x represents each share, you will multiply m and x. If she sold all them for the value of y. Then you set mx equal to y.

mx = y

or

y = mx

a map that created using a scale of 1 inch equals 3 miles shows a lake with an area of 18 square inches was a actual area of the lake​

Answers

Answer:

Step-by-step explanation:

18in^2(3mi/in)^2

18in^2(9mi^2/in^2)

162 mi^2

my points is going lower and lower and lower and lower until its zero

But i dont care.




Just answer my question in the picture above. ​

Answers

Answer:

c, a, b

...................

A baseball player throws a ball from second base to home plate. How far does the player throw the ball? Include a diagram showing how you got your answer. Decide how many decimal points of accuracy are reasonable. Explain your reasoning.

Answers

Answer:

Distance=123.28. Two decimal places is reasonable, because it gives a close approximate to the exact answer, while remaining short and easy to use.

Step-by-step explanation:

Use Pythagorean theorem.

90^2+90^2=c^2

8100+8100=16200

The square root of 16200 is 127.279220614

127.279220614~127.28

There are 20 pieces of fruit in a basket and 12 of them are oranges. What percentage of the pieces of fruit in the basket are oranges? Show your work in the box and circle your answer

Answers

Answer:60 percent

Step-by-step explanation: You have fraction the two numbers which will be 12/20 them you times it by 100 which equals 60 oranges.

-3 + 8n = -5
what is n?

Answers

click link above for the answer

Answer:

-1/4

Step-by-step explanation:

What is the value of x in the equation 2/3x = 12

Answers

Answer:

x = 8

The value of 'x' is 8

Step-by-step explanation:

2/3(8)=12

2/(24)=12

Good luck!!

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