MATHEMATICS MIDDLE SCHOOL

The new number, 200, is 400 less than the original number. What is the approximate percent change?

Answers

Answer 1
Answer: the answer go to be 200 and you subtract
Answer 2
Answer:

Answer:

66 percent

Step-by-step explanation:

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A matchbox tray slides into its outer cover in how many different ways can you do this

Answers

-- Slide end-A of the tray, right-side-up, into end-A of the cover.    (0 0 0)
-- Slide end-A of the tray, right-side-up, into end-B of the cover.    (0 0 1)
-- Slide end-A of the tray, upside-down, into end-A of the cover.    (0 1 0)
-- Slide end-A of the tray, upside-down, into end-B of the cover.    (0 1 1)
-- Slide end-B of the tray, right-side-up, into end-A of the cover.    (1 0 0)
-- Slide end-B of the tray, right-side-up, into end-B of the cover.    (1 0 1)
-- Slide end-B of the tray, upside-down, into end-A of the cover.    (1 1 0)
-- Slide end-B of the tray, upside-down, into end-B of the cover.    (1 1 1)

What number is 40% of 90?

Answers

Answer:

36

Step-by-step explanation:

You multiply 40% by 90. Or make 40% 0.4 and multiply that by 90.

Answer:

36

Step-by-step explination

You should take 40% then put it into decimal form. You should get 0.4 then multiply that by 90 and you should get 36.

What is 8x squared = 56 rounded to the nearest tenth equal?

Answers

8x^2=56\ /:8\nx^2=7\nx^2-7=0\n(x- √(7) )(x+ √(7) )=0\nx-√(7)=0\ \ \ \ \ or\ \ \ \ \ x+√(7)=0\nx=√(7)\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x=-√(7)\n \n x\approx2.65\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x-\approx2.65
8x^2=56
divide noth sides by 8
x^2=7
square root both sides
x=2.65 or -2.65

Write 3/4 3/6 1/3and2/12 in order to least to grater

Answers

It would be 2/12, 1/3, 3/6, and 3/4

Listed below are sorted duration times (seconds) of eruption of the old Faithful geyser in Yellowstone National Park. use these to construct a frequency distribution

Answers

Answer:

See explanation

Step-by-step explanation:

Width = 25 seconds

Lower class limit = 125 seconds

To find the frequency of each class, just count the numbers which appear in described class

Hence, the frquency distibution is

Classes:                                    Frequency

125 - 150 seconds                           1

151 - 175 seconds                            0

176 - 200 seconds                          0

201 - 225 seconds                          4

226 - 250 seconds                        34

251 - 275 seconds                          11

The value of Maggie's car decreased by 25% since last year, when she bought it. If the car is now worth $18,000.00, how much was the car worth when she bought it?A.
$25,714.29
B.
$24,000.00
C.
$22,500.00
D.
$19,500.00

Answers

B. 24,000. 
The car was worth 24,000 when she bought it.

25% = equivalent of the decreased value
18,000 = net of the decrease value

Original value = 18,000 / (100% - 25%) 
                       = 18,000 / 75%
Original value = 24,000

Decrease value = 24000 * 25%
                           = 6000

Net Value = 24,000 - 6000
                 = 18,000
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