8th grade math i mark as brainliest

Answer:

1 1/4 miles per hour which is equivalent to 5/(1/4) miles per hour.​

Explanation:

I am not sure but I think this is the right answer

Answer: 818.1 miles 9000 mps

Step-by-step explanation:

due to the equipment bill that was already

Answer:

4.64m²

Step-by-step explanation:

Given,

H(known as height) = 3.2m

B(known as base) = 2.9m

In order to find the area we apply the formula

Area of a triangle = [tex]\frac{1}{2}bh[/tex]

                              = [tex]\frac{1}{2} X 2.9 X 3.2\\\frac{1}{2} X 9.28\\4.64m^{2}[/tex]

Answer:

4.64 meters squared

Answer:

To solve the equation -(x + 3) = 2(x - 3) for x, we can follow these steps:

Step 1: Distribute the negative sign on the left side of the equation:

-(x + 3) = 2(x - 3)

=> -x - 3 = 2(x - 3) (using the distributive property)

Step 2: Expand the right side of the equation:

-x - 3 = 2x - 6

Step 3: Add x to both sides of the equation to isolate the x term on one side:

-x + x - 3 = 2x + x - 6

=> -3 = 3x - 6

Step 4: Add 6 to both sides of the equation:

-3 + 6 = 3x - 6 + 6

=> 3 = 3x

Step 5: Divide both sides of the equation by 3 to solve for x:

3/3 = 3x/3

=> 1 = x

So, the correct value of x that makes the equation true is B. 1.

PLEASE MARK BRAILYISTT :D

Answer:

B, one

Step-by-step explanation:

In order to solve this, you can solve the equation. First, you can use the distributive property to get -x-3=2x-6. If you make the variables on one side and the constants on the other, you will get -3x-3=-6. This can further simplify to -3x=-6. Divide both sides by -3 to get that x=1. Then, the correct answer is B.

Answer:

5x(x - 4) = 10   X = 6

18 + x = 20      X = 2

18= x X 10 - 22  X = 4

Step-by-step explanation.

Answer:

1. X= 6

2. X= 4

3. X= 2

Step-by-step explanation:

Answer: Your answer is 7 months, 87 days

Hope it helped :D

Answer: No but close

Step-by-step explanation:

In order to do this, we have to get the equation. You got the have to do x+x+2(2x-5). Since there are two sides that are x, and two sides that are five less than twice of x. We get 2x+4x-10. The answer is 6x-10. I think

Answer: sixty-three and three fourths in2

Step-by-step explanation:

We have to find the surface area. We can use the formula, and plug in the numbers.

Answer: 1/5

Step-by-step explanation:

there is one 4 in the group of 5, 1/5

Answer:

Step-by-step explanation:

107 is the answerrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

Answer:

X × (100-25)

Step-by-step explanation:

Lets take X and then multiply it by its discount, 25% which is (100-25). Your final product will be what you bought divided by 25%.

Hope that helped. Try it with your teacher, might be wrong...

To solve this equation, we can first simplify the left-hand side:

2^(3n+1) / (2^n - 1) = 3n + 16

We can then multiply both sides by 2^n - 1 to eliminate the denominator:

2^(3n+1) = (3n + 16)(2^n - 1)

Expanding the right-hand side:

2^(3n+1) = 6n*2^n + 16*2^n - 3n - 16

Simplifying:

2^(3n+1) = (6n - 3n)*2^n + (16 - 16)

2^(3n+1) = 3n*2^n

Dividing both sides by 2^n:

2^(n+1) = 3n

Taking the logarithm of both sides (with any base), we get:

n log(2) + log(2) = log(3n)

n = (log(3n) - log(2)) / log(2)

We can use a calculator to evaluate this expression, or simplify it further using logarithm rules:

n = log2(3n/2)

We can now use iterative methods or a graphing calculator to find a numerical solution for n. The solution is approximately 7.524.

I'm Just Guessing At The Possible Answers. Please post a picture of the drop-down answers...

1. Between 3 and 8

2. Well Distrubuted???

3. One Outlier (19.86)

Answer:

5/36

Step-by-step explanation:

The chance that Melissa chooses a fruit snack is 5/12. This is because there are 5 fruit snacks and 12 snacks in total. If she puts the fruit snack back, the chance of getting a granola bar is 4/12 or 1/3 because there are 4 granola bars and 12 snacks in total making it 4/12 and when simplified, 1/3. You must then multiply the fractions. After multiplying 5/12 by 1/3, you get 5/36.

Answer: 1/2

Step-by-step explanation:

1,2,7 out of 6   3/6=1/2

Answer:

2/6

Step-by-step explanation:

1 and 2 are factors of 14 while the rest are not so that is 2 and there are 6 total sides so it would be 2/6

Answer:

The correct answer is B.

Step-by-step explanation:

First off, if you don't already know what's the vertical line test, you're guaranteed to get this question wrong.

The vertical line test is a visual way to figure out if the function is a function. You just draw a line anywhere on the paper, and see if it intersects on one point or more than one point. If it intersects at only one point, it's a function because at the end of the day, you can have only one output for each input.

Think of this as an actual function. For example, if you go to a vending machine, and you put a dollar in for a single bag of chips, the next time you put a dollar in, you should get only one bag of chips, or else the machine is broken. It won't function.

In this case, it's a function since each input has its own output, or it passes the vertical line test, it's good to go. It's not a linear function since it's not straight, but hey, it at least is a function.

Answer:

Step-by-step explanation:

it is 1,3,5,15,2369,115,345

Answer: 258 cubic inches

Answer:

258 cubic inches

hope you like it : )

Answer:

Look at Explaination

Step-by-step explanation:

Im very busy rn so i cant provide an answer, but I can easily explain mean median and mode. Mean is all the numbers added up divided by the amount of numbers there are.

Ex: 1,2,3,4,5 is the number list so you add 1,2,3,4, and 5. Then you divide that sum by 5 because there is 5 numbers there.

Median is simply just the middle of the list, for ex 1,2,3,4,5 3 is the median, but if it is 1,2,3,4,5,6 then you would make it 3.5.

Mode is the most repeated number in the list

Ex: 1,1,2,3,4,5,5,5,6,7

The Mode in the list is 5, since it is repeated 5 times. If none repeated then it is N/A if it is tied then put both numbers.

Answer:

29.7

Step-by-step explanation:

Answer: 29.7

Step-by-step explanation:

Answer:

(A) P(5 on die) = 1/6, P(7 on spinner) = 1/8

(1/6)(1/8) = 1/48

(B) P(less than 3 on die) = 2/6 = 1/3

P(greater than 5 on spinner) = 3/8

(1/3)(3/8) = 1/8

Answer:

The diameter of the cone is 2[tex]\sqrt{6}[/tex] or [tex]\sqrt{24}[/tex]

Step-by-step explanation:

The volume of the cone formula is 1/3hπr².

We already are given the volume and the height, so we can plug those in.

Our formula to find the radius is this: 20π=1/3(10)πr².

Since we have π on both sides, cancel the π on both sides.

We are left with 20=1/3(10)r².

We move 1/3 to the other side, so then we get 60=10r².

We then divide 10 on both sides, so we get 6=r².

Square root both sides to find out the radius.

The result we get is [tex]\sqrt{6}[/tex]=r.

But, we're not done yet.

Diameter=double the radius.

Multiply this radius by 2, and we'll get 2[tex]\sqrt{6}[/tex], or [tex]\sqrt{24}[/tex].

Answer:

0.003

Step-by-step explanation:

0.3 ÷ 100

= 0.003

Answer:

0.003

Step-by-step explanation:

0.3/100

Answer:

5 ft

Step-by-step explanation:

In order to find the missing side length, we need to take a look at what has been given to us.

From what I see, this shape looks like two rectangles connect at their ends.

What do we know about rectangles?

-Rectangles have 2 sets of sides that are equal length, totaling 4 sides.

So, let's say we know the length of the longest side of the tallest rectangle.

-That side length is 15ft.

Now, we know that the opposite side of that imaginary rectangle has to be of equal length of 15ft. But, only 10 ft are show...

Since we know that there are more than 10 ft we must subtract 10 ft from the 15 ft to get the side length marked as "?", or what should have been left at that side.

15ft - 10ft = 5ft

Answer:

D)4 i think because it is the one landed on the most.

Answer:

6

Step-by-step explanation:

because LCM(2, 3) = 6; Knowing the LCD, you can find equivalent fractions to yours 1/2 and 1/3 , with the denominator equal to found LCD: 1/2 = 3/6. 1/3 = 2/6.

Answer: The least common denominator is 6

Step-by-step explanation: I learned how to do this in school last year.

Answer:

d=1.225

Step-by-step explanation:

24d+0.2=29.6

24d=29.6−0.2

24d=29.4

d= 29.4/24

d=294/240

d=49/40

d=1.225

To solve the equation, you just need to isolate the variable d. Here's the equation:

Answer:

Step-by-step explanation:

b

Answer:

The correct answer is the one on the bottom. The other answers shown are all wrong. The correct answer is J

Step-by-step explanation:

First off, you have to figure out what's the unit rate, so we come across two points, in this case, I came up with the orgin and (10, 2). We did the rise over the run, which gave us a unit rate of 5 of y for every x. In this case, the correct answer would be H. Even though I can't see what H is, every single other one is correct, so we have to come to the conclusion that H is the correct choice for the one that's wrong.

F matches with the unit rate since 2/10 is also equaled to 0.2/1 since it's 0.2 per piece, so the piece is the x and the 0.2 is the y.

G matches with the unit rate because it's 6 workers per 30 children. 6/30 matches with 2/10.

H matches with the unit rate since it's 9 pages per 45 minutes, making the equation 9/45, which indeed, does match 2/10.

J doesn't match with the unit rate since 10 dollars per 2 hours implies that the equation is 10/2, which gives you the unit rate of 5/1 or 5, which is the reciprocal of 1/5.

Answer:

  J.  Richie earns $10 every 2 hours to pet sit for his neighbor

Step-by-step explanation:

You want to identify the situation with the different unit rate.

For proportional relations, such as the ones given in this problem, the unit rate is calculated by dividing a value for the dependent variable by the corresponding value for the independent variable. When the coordinates are expressed as an ordered pair (x, y), the unit rate is y/x.

The graph passes through a couple of grid intersections. One of them has coordinates (10, 2). The unit rate is 2/10 = 0.2.

The unit rate is the rate for 1 unit: $0.20 for 1 piece. The numerical value of the unit rate is 0.20, same as the graph.

The given relation between children and workers is (children, workers) = (30, 6). The unit rate is 6/30 = 0.2, same as the graph.

The relation between minutes and pages is (minutes, page) = (45, 9). The unit rate is 9/45 = 0.2, same as the graph.

The relation between hours and earnings is (hours, earnings) = (2, 10). The unit rate is 10/2 = 5, different from the graph.

The different unit rate is ...

 J.  Richie earns $10 every 2 hours to pet sit for his neighbor

__

Additional comment

Calculating the unit rate as y/x only works when the relation is a proportional one. All of the situations here have proportional relations.

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Answer:

The answer would be 480

Step-by-step explanation:

The first step is to find out 20% of 600 and that would equal 120, the next step is to subtract 120 from 600 and the answer is 480.

Answer:

480

Step-by-step explanation:

If the number increased by 20% we can decrease it by 20% to get our number before it was increased.

20% of 600 is 120

600-120=480

Answer:

Reflection across x = 4

Step-by-step explanation:

I took the test so you don't have to! Trust me.