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Mathematics

1 answer:

Ber [7]3 years ago

8 0

Answer:

Pat should expect to roll a multiple of 3 20 times.

Step-by-step explanation:

There is a $\frac{2}{6}$ or $\frac{1}{3}$ chance of landing on 3 or 6 every time Pat rolls. That probability doesn't chance.

60 x (1/3) = 20

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Draw an array for the equation 5+5+5=15

kicyunya [14]

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I'm not for sure if this is what you meant though sorry

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3 years ago

A map has a scale of 1 centimeter = 40 kilometer. If the distance between Fort Worth and El Paso is 21.7 cm on a map , how many

ryzh [129]

Aloha!
1 centimeter= 40 kilometers
The distance between the cities in centimeters is 21.7
To get the answer into kilometers, you multiply.
So, 21.7 times 40 which is 868 kilometers.
To answer your question, the distance between Fort Worth and El Paso is 868 kilometers.
I hope this helps!
Adios!:)

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qwelly [4]

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2 years ago

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ahrayia [7]

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3 years ago

Read 2 more answers

The volume of water remaining in a hot tub when it is being drained satisfies the differential equation dV/dt = −3(V)^1/2 , wher

dimaraw [331]

The given function is a variable separable differential equation. Combine like terms, integrate, apply the appropriate limits, and express V in terms of t. This is done as follows:

dV/dt = -3(V)^1/2
dV/-3V^1/2 = dt
$\int\limits^V_m { \frac{1}{03 \sqrt{V} } } \, dV = \int\limits^t_0 {} \, dt$

m here is the initial V which is 225. Then after integrating,

-2/3 (√V - √225) = t
-2/3 (√V - 15) = t

$V= \sqrt{ \frac{-3}{2}t+15 }$

That is the expression for V at time t. I hope I was able to help. Have a good day.

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3 years ago