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11Alexandr11 [23.1K]
3 years ago
15

Help

Mathematics
1 answer:
Airida [17]3 years ago
8 0

Step-by-step explanation:

Everytime the dice is rolled, there is a 50% chance to get an odd number.

Hence 50% * 50% = 25%.

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10y-22=29-7y Solve and show all your work?
olga2289 [7]

combine the y's and the regular numbers

17y=51

divide 51 by 17

y=3

3 0
3 years ago
Read 2 more answers
anita grew a garden with 3/4 of the area for vegetables.in the vegetable section 1/6 of the area is carrots.what fraction of the
frosja888 [35]

9514 1404 393

Answer:

  1/8

Step-by-step explanation:

The fraction of the total is ...

  (1/6) of (3/4) = (1×3)/(6×4) = 3/24 = 1/8

1/8 of the total garden is carrots.

3 0
3 years ago
Which expression is equivalent to 20x−8y
Anni [7]

Answer:

1.

Step-by-step explanation:

We are trying to find out what is equal to 2(10x+4y)

2(10x+4y)

because 2 times 10x is 20x,  4y times 2 is 8y!

4 0
3 years ago
A rock formation is 5 miles due north of its closest point along a straight shoreline. A visitor is staying in an inn that is 7
GREYUIT [131]

Answer:

4.11 miles.

Step-by-step explanation:

In the image that I am going to attach we can see the description of the statement in a graph, now, the right triangle is formed, and we can apply Pythagoras, and the hypotenuse would be equal to:

(5 ^ 2 + x ^ 2) ^ (1/2)

The speed is equal to:

V = d / t, therefore the time is t = d / V, the total time would then be:

total time = (5 ^ 2 + x ^ 2) ^ (1/2) / 3 + (7-x) / 6

we derive with respect to x, and we are left with:

dt / dx = x / (3 * (5 ^ 2 + x ^ 2) ^ (1/2)) - 1/6 = 0

x / (3 * (5 ^ 2 + x ^ 2) ^ (1/2)) = 1/6

6x / (3 = (5 ^ 2 + x ^ 2) ^ (1/2)

(2 * x) ^ 2 = (5 ^ 2 + x ^ 2)

4 * x ^ 2 = 25 + x ^ 2

3 * x ^ 2 = 25

x ^ 2 = 25/3

x = 2.88

now we replace

7 - x = 7 - 2.89 = 4.11

In other words, the answer is 4.11 miles.

7 0
3 years ago
The half-life of uranium-238 is 4.5x10^9 years. The half-life of uranium-234 is 2.5x10^5 years. How many times greater is the ha
lara31 [8.8K]

<u>Answer:</u>

Half-life of uranium-238 18 \times 10^{3} \text { times greater } that of uranium-234

<u>Explanation:</u>

Half time of uranium-238 = 4.5\times 10^9  years

Half time of Uranium-234 = 2.5\times 10^5 years

To find how much times greater the half life of uranium-238 is from uranium-234

= \frac{\text { Half life of Uranium-238 }}{\text { Half time of Uranium - 234 }}

=\frac{4.5 \times 10^{9}}{2.5 \times 10^{5}}

=18 \times 10^{3} \text { times greater }

Hence Uranium-238 is  18 \times 10^{3} \text { times greater } than Uranium-234

4 0
4 years ago
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