MATHEMATICS HIGH SCHOOL

If Donna traveled 2,100 miles in 7 hours on her train ride through Europe, how fast was the train traveling?

Answers

Answer 1
Answer: Average speed of train = 2100 miles/7hrs= 300 miles/hr = 5 miles/min

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MIDDLE SCHOOL

How to round 4.253 to the nearest hundredths

Answers

When you round to the hundredths there can only be two digits past the decimal point. So look to the right and since it's 3, the number stays the same

Answer: 4.25

Hope this helps :)
Please give brainliest
4.300 would be your answer.
HIGH SCHOOL

2x=5 what do we divide by?

Answers

We divide by 2 on both sides.

We get the final answer as

x = 5/2 = 2.5
2x = 5
2x/2 = x
5/2 = 2.5

x = 2.5
MIDDLE SCHOOL

the lenth of a rectangle is three time width the perimeter of the rectangle is 24 cm calculate is the area rectangles​

Answers

Answer:

The area is 27cm

Step-by-step explanation:

Answer:

Step-by-step explanation:

HIGH SCHOOL

One ball is drawn at random from a bag containing 17 red r balls and 9 white w balls. what is the probability that the ball is green g?

Answers

If there are no green balls in the bag, the probability of drawing a green ball is zero.

Answer:The probability of pulling out a green ball is 0

Step-by-step explanation:

There were no green balls in the bag

HIGH SCHOOL

What is the area of a circle whose diameter is 32 inches? Use = 3.14 in your calculations. Show your work. There no picture.
i need some help with it.

Answers

Answer: 803.84

Explanation : area = 3.14 x radius*2

Radius=diameter/2

For this equation your diameter is 32 so you divide that by 2 and get 16 then square that. 16 squared is 256 you then multiply that by 3.14 and get 803.84
MIDDLE SCHOOL

A man purchased 100 oranges at 800$ and sold each of them at 10$. What is his percentage profit

Answers

Answer:25%


Step-by-step explanation:

  1. fomula => percantange profit = Profit/buying price x 100%                                        
  2. we find profit by taking money sold for each orange multiplied by total numbers of orangessubtracted my inital buying price of oranges

(10 x 100) - 800= 200

200/800 x 100

percantage profit= 25%

                                           

Answer:

80%

Step-by-step explanation:

800 ÷ 100 = 8$ → purchased each

8$ to 10$ = 80%

HIGH SCHOOL

Choose the correct simplification of (3x^3+2x^2-5x)-(8x^3-2x^2)

Answers

(3x^3+2x^2-5x)-(8x^3-2x^2)
-5x^3-5x
MIDDLE SCHOOL

Simplify (-14+77) - |21-82|

Answers

-14+77=63
21-82=-61
|-61|=61
So 63-61=2

Answer is 6

Step-by-step explanation:

HIGH SCHOOL

The measure of the angle formed by two intersecting perpendicular lines is __________.. . Choices;. 45. 360. 180. or . none of the above

Answers

The answer to the item above would be the fourth choice, "none of the above". The measure of the angle formed by two intersecting perpendicular lines should be 90 degrees. The lines would form a section that is one-fourth of the Cartesian plane, thus, the 90 degrees. 

Answer:

The correct answer is ‘‘none of the above’’.

Step-by-step explanation:

The angle formed by perpendicular lines is 90 degrees. According to the definition of perpendicularity, two lines are perpendicular if they meet at a right angle.

The definition of ‘‘right angle’’ tells us that the measure of a right angle is 90 degrees.

It is not difficult to deduce that the other three angles have the same measure. Then, two perpendicular lines form four right angles.

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