Mathematics High School

Which of the following show the Associative Property?
A. 3 + 8 + 9 = 9 + 3 + 8
B. (3-8) - 9 = 3 - (8 - 9)
C. None of these
D. (3 + 8) - 9 = 3 + (8 + 9)

Answers

Answer 1
A. I think because it all equal the same


Related Questions

Two points are _______________________ collinear

a
Always
b
Sometimes
c
Never

Answers

Answer:

a

Step-by-step explanation:

Two points are always collinear since we can draw a distinct (one) line through them.

Answer:

always

Step-by-step explanation:

the system ax-by=-16 and ax+2y=20 has one solution at the point (3,4). Find a and b. (a=4,b=7)

Answers

Answer:

Step-by-step explanation:

substitute (3,4) to equation: ax+2y=20

3a+8=20

a=4

Then, 4x-by=-16

substitute (3,4) to solve b,

4*3-b(4)=-16

b=7

Use the original price and the markdown to find the retail price.

Original price: $30; Markdown: 36%

The retail price is $_____

Please include work.

Answers

Answer:

83

Step-by-step explanation: you divide 30 and  36% and you will get 83 hope this helped

find solution and show work for (3.4^17)^4

Answers

Answer:  3.4^68

Work Shown:

(3.4^17)^4

3.4^(17*4)

3.4^68

The general rule is (a^b)^c = a^(b*c)

5. In which group are the spheres of the Earth listed in order of increasing density?

Answers

Answer:

whats density

Step-by-step explanation:

LEVEL
Simplify the expressions (NOT equations!)
1.)
5(x + 5)
what’s the solution to 5(x+5)

Answers

Answer:

The simplified answer would be 5x + 25

Step-by-step explanation:

(5)(x+5)

(5)(x)+(5)(5)

=5x + 25

A bottle of water is 2/3 full. You drink 1/2 of the water. Use a model to find the portion of water that you drink.

Answers

Answer:

you drank 1/3 of the bottle

Step-by-step explanation:

split the 2/3 in half

.
8.) A can of tennis balls is $4.00 and is 15% off. The sales tax is 6%.

Help pls

Answers

The answer for this equation is $3.64

A runner crossed the finish line at the time shown on the clock. The runners time was 2 hours and 45 minutes. What time did the race begin? Helppp quick plzzzzz I rlly need to fast tho

Answers

Answer:

12.00

Step-by-step explanation:

9:15 + 2 hours and 45 minutes =

(9:15 + 2) + 45 +

11:15 + 45 = 12:00

Hope This Helps

<3

Find the x and y intercept of y=-3x+4

Answers

Answer:

I've attached the answer below.

Step-by-step explanation:

did it tell you what x and y equal

What value of x will make the equation true? 1/4x - 5 = 2

Answers

Answer:

28

Step-by-step explanation:

Step 1:

1/4x - 5 = 2       Equation

Step 2:

1/4x = 7     Add 7 on both sides

Step 3:

x = 7 ÷ 1/4     Divide

Answer:

x = 28

Hope This Helps :)

Answer:

28

Step-by-step explanation:

Add 5 to each side, so it now looks like this: 1/4x = 7Divide each side by 1/4 to cancel out the 1/4 next to x. It should now look like this: x = 28

I hope this helps!

If <3=70°, then find the rest of the angles.
1.) m<1=
2.) m<2=
3.) m<4=
4.) m<5=
5.) m<6=
6.) m<7=

Answers

1. 110
2. 70
3. 110
4. 110
5. 70
6. 70

Which square root would end as a rational number?

Answers

Answer:

it is all of them because

Step-by-step explanation:

the first on is 8.94..

2,15.81

3,2.44

4,13

they all are rational number

4 2/8 As A Improper Fraction​

Answers

The answer is 17/4 feel free to mark as brainliest:)

es 1024 divisible por 32

Answers

Answer:

Yes

Step-by-step explanation:

answer is 32

Point H is between G and I. If HG = 8x + 7, HI = 3x - 2, and GI = 38, what would be the length of GH ?

Answers

Answer:

let's see what to do...

Step-by-step explanation:

H is between G and I.

G I = G H + H I

38 = 8 x + 7 + 3x - 2

38 = 11 x + 5

subtract the sides of equation minus 5

38 - 5 = 11 x + 5 - 5

33 = 11 x

divided the sides of equation by 11

33 ÷ 11 = 11 x ÷ 11

3 = x

So the lenght of (G H) is :

8 x + 7 -----¢ 8 (3) + 7 = 24 + 7 = 31

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

WILL MARK BRAINLYLIST PLZZ HELP!!

Answers

Answer:

x = 49

Step-by-step explanation:

180-131=49

they are supplementary angles

Answer:

49

Step-by-step explanation:

Marco needs to buy some dog food at the nearest store five bags of dog food cost $27 and 50 Cent how much would Marco spin on three bags of dog food

Answers

Answer:

16.5

Step-by-step explanation:

27.50/5 =5.5x3=16.5

Oceanside bike rental shop charges 16 dollars plus 9 dollars an hour for renting a bike.Sam paid 52 dollars to rent a bike.How many hours did he pay to have the bike checked out?

Answers

Answer:

4 Hours

Step-by-step explanation:

Since the equation is:

y = 9x + 16

You have to find x

This is the logical way:

52-16 = 36 because thats the starting fee

So 36 divided by 9 equals 4

You do that because 9 is the charge per hr

So he rented it for 4 hours.

Hope this helps:)

Arun has apples and oranges in the ratio 5:3. Convert the ratio of apples and oranges to the total fruits in fraction form and percentage respectively.

Answers

Answer:

Apples: 5/8 or 62.5%

Oranges: 3/8 or 37.5%

Step-by-step explanation:

You would figure this out because Aran has 5 apples and 3 oranges and if you’re trying to find the percentage to total number of fruits you have, it would be 5 apples/ 8 fruits and 3 oranges/ 8 fruits.

Hope this helped :)

Lisa lit a candle with a height of 8 inches. When lit, this candle loses 10% of its original
height every hour.

Answers

Answer:

1.25 hours or 1 hour and 15 minutes

Step-by-step explanation:

Question

Lisa lit a candle with a height of 8 inches. When lit, this candle loses 10% of its original  height every hour. Please complete the following sentence by writing the number in the blank.   Until the candle has been burning for at least _______ hours, the height of Jennifer's candle will be more than 7 inches.

Candle looses 10% of 8 inches, it equals:

8*0.1 = 0.8 inches an hour

Let x be required time, then:

8 - 0.8x > 70.8x <  8 - 70.8x  < 1x  < 1/0.8x  <  1.25or 1 hour 15 minutes

I’ll mark as BRANLIEST!!

*~URGENT~*

Tell whether to give an order pair is a solution of the equation:

Y=2x+7; (-2,3)

Answers

Answer:

It does work.

Step-by-step explanation:

which equation has a solution of x = 4​

Answers

Answer:

There are no equations or no pictures

the product of x and three is negative -27. what is x

Answers

Answer:

-30

Step-by-step explanation:

it just is

Based on the sample standard deviation value, the
temperature each day during this time period varied by
about ✓ from the
of 38.11°F. If the
next recorded temperature is 56°F, the standard
deviation would

Answers

Answer:

3.66, mean, and increase

Step-by-step explanation

Answer:

3.66, mean, and increase

Step-by-step explanation:

Students make 58.5 ounces of liquid soap for a craft fair. They put the soap in 4.5 ounce bottles and sell each bottle for $5.50. How much do the students earn if they sell all the bottles of liquid soap?

Answers

Step-by-step explanation:

first you want to divide the ounces of liquid soap we have by the ounce bottles we have (58.5 / 4.5 = 13 )

so now we know we have 13 bottles of liquid soap

then you want to multiply the 13 bottles of soap by how much they sell each bottle for ( 13 x 5.50 = 71.50 )

the answer: the students would earn $71.50 if they sell all the bottles of liquid soap

hope that helps :)

The graph represents a person’s heart rate in beats per minute during 30 minutes of exercise.

A graph titled Cardiac Exercise. The horizontal axis shows time (minutes), numbered 3 to 30, and the vertical axis shows Heart Rate (b p m) numbered 15 to 150. The line starts at 75 b p m in 0 minutes, to 135 b p m from 6 to 25 minutes, and ends at 105 b p m at 30 minutes.

Which statement best describes the relationship between heart rate and time during exercise?

The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually increases for 5 minutes.
The heart rate decreases for 6 minutes, remains constant for 19 minutes, and then gradually increases for 5 minutes.
The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes.
The heart rate remains constant for 6 minutes, increases for 19 minutes, and then gradually decreases for 5 minutes.

Answers

Answer:

The Answer is C: The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes. :)

Answer:

C. The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes.

Step-by-step explanation:

This is the correct answer on Edge 2021, just took the quiz.                           Hope this helps ^-^.

5. Find the value x. (3pts.)
6x - 18
3x + 18
someone help

Answers

Answer:

x=12

Step-by-step explanation:

6x - 18 = 3x + 18

6x = 3x + 36

3x = 36

x=12

Answer:

its 12

Step-by-step explanation:

Twelve years ago, Jaden was 13. How old is Jaden now? Write an equation.

Answers

Answer:

x-12=13

X=12+13

=25

Jaden is 25 yrs old

Answer:

x + 13 = 25

Step-by-step explanation:

Since Jaden was 13 12 years ago, you should know to make the equation x + 13 = 25. How I got 25? Well 13 plus 12 is 25.

what is the y-intercept?

Answers

Answer:

the y intercept is -2

Step-by-step explanation:

If you look at the pattern of the y values, it's just adding one every time. so when x=o y=-2

The y-intercept is -2
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