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zhuklara [117]
3 years ago
11

9 hundred = how many 10's

Mathematics
1 answer:
sukhopar [10]3 years ago
4 0

Answer:

90

Step-by-step explanation:

900 is 90 tens

Check

900/10 = 90

or....

90 * 10 = 900

Hope this helped!

Have a supercalifragilisticexpialidocious day!

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You have a standard deck of 52 cards. You pick one card from the deck and then, without putting the first one back, pick a secon
Nina [5.8K]
Set up the two events
A = first card is a 9
B = second card is a 9

The probability for event A is
P(A) = 4/52
because there are four "9" cards out of 52 total

If event A happens first, and B follows, then the probability is
P(B|A) = 3/51
because there are 3 nines left over out of 52-1 = 51 total left over
No replacement has been made
The notation P(B|A) means "probability of event B given that event A has happened"

Multiply the probabilities
P(A and B) = P(A)*P(B|A)
P(A and B) = (4/52)*(3/51)
P(A and B) = (4*3)/(52*51)
P(A and B) = 12/2652
P(A and B) = 1/221
P(A and B) = 0.00452488687782

Rounded to 4 decimal places, the approximate answer is 0.0045
The exact answer as a fraction is 1/221
7 0
3 years ago
7x + 2y = 17<br>2x - 2y = 1<br>=​
DerKrebs [107]

Answer:

(2,\frac{3}{2}})

Step-by-step explanation:

For finding the system of equations you can use one of two methods. There's the elimination method and also the substitution method. For this I think the best way we could go at solving this is by using the elimination method. Since we can eliminate the 2y. We can then solve for x and then we'll go from there.

\left \{ +{{7x+2y=17} \atop {2x-2y=1}} \right. \\\\9x=18\\x=2

Now that we know what x is we can substitute it for one of the equations and then we will be able to solve for y.

7x+2y=17\\7(2)+2y=17\\14+2y=17\\2y=3\\y=\frac{3}{2}

So now we have the x and the y and once we place them together we can get the solution of those two equations, and the solution is (2,\frac{3}{2}}).

5 0
3 years ago
Holding a participant variable constant has the double advantage of (1) preventing the variable from becoming a confounding vari
Elodia [21]

Answer:

The provided statement is True.

Step-by-step explanation:

Holding a variable constant implies that there are no kind of relationship between the variables and the treatments.

Holding a participant variable constant has the double advantage:

(1) preventing the variable from becoming a confounding variable

(2) reducing variance within groups.

A confounding variable effects both the dependent and the independent variable remarking a relationship between the two.

Variation within group implies the difference caused by the individual values of each group.

Thus, the provided statement is True.

5 0
3 years ago
150 in scientific notation
Ugo [173]

Answer:

1.5 x 10^2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Kendra has a painting canvas that is 22 inches wide by 38 inches high. She painted a red rose, which covered 30% of the canvas.
Wittaler [7]

<u>Given: </u>

  • Breadth of canvas is 22 inches.
  • Length of canvas is 38 inches.

<u>To Find:</u>

  • If kendra covered 30% of the canvas by painting red rose, what will be the area of canvas covered by red rose?

<u>Solution: </u>

To find the area of red rose, first we have to find the area of canvas.

★ Area of Rectangle = Length × Breadth

➝ 22 × 38

➝ 836 in²

So, Area of canvas is 836 inches².

★ Area of red rose:-

➝ 30% of 836 in²

➝ 0.30 of 836

➝ 250.8

Hence, Area covered by the red rose is <u>2</u><u>5</u><u>0</u><u>.</u><u>8</u>

<h2> ____________________</h2><h3><u>Additional</u><u> </u><u>Information:</u><u> </u></h3>

★ Triangle => ½bh

★ Rectangle => Length × Breadth

★ Circle => πr²

★ Square => Side × Side

★ Parallelogram => Base × Height

★ Sphere => 4πr²

7 0
2 years ago
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