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grin007 [14]
3 years ago
11

Ava, Zoe and Logan went to the market to buy some presents for a friend's birthday. The three of them

Mathematics
1 answer:
alexira [117]3 years ago
7 0

a + z + l = 720

l = 2z = 2a - 80

4z + 40 = 720

4z = 680

z = 170

l = 340

a = 210

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Sarah rolls 2 fair dice and adds the results from each.
notka56 [123]

Answer:

1/36 ≈ 0.028

Step-by-step explanation:

In order to get a total of 2 if you roll 2 dice, you have to roll two ones. (You can't roll a 0 and 2 because an average die does not have a zero on it)

You have a 1/6 chance to roll a 1 on the first die; and you have a 1/6 chance to roll a one on the second die.

To find the probability of this happening together you have to multiply them together.

1/6 * 1/6 = 1/36 = 0.0277778 ≈ 0.028

8 0
4 years ago
How many subsets are there in {1, 2, 3, 4, 5, 6}?
Contact [7]
<h3>Answer:  64</h3>

Explanation:

If there are n = 6 items in the set, then there are 2^n = 2^6 = 64 subsets

This is because there are 2 choices per slot. Either the item is in the subset or not. Since we have 6 slots, and 2 choices per slot, we have (2*2*2)*(2*2*2) = 2^6 = 64 different combos.

Side note: The empty set is included as one of the subsets. Also, the original set itself is a subset.

8 0
3 years ago
Read 2 more answers
256 equal to what the power of 4
pashok25 [27]
4×4=16 (4^2)
16×4=64 (4^3)
64×4=256 (4^4)
So 256 is 4^4
6 0
3 years ago
Cases are normally sold full. There were three partially full cases that could be combined to make full cases. The cases were 11
Pani-rosa [81]
You will get 1 7/16 cases
3 0
4 years ago
01:59:51
IceJOKER [234]

Answer:

L+2=8

Step by step explaintion.

the length is so much longer than some multiple of the width

or perhaps the area of the rectangle.

8 0
3 years ago
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