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Scilla [17]
2 years ago
7

Is the time it takes to fly from city upper a to city upper btime it takes to fly from city a to city b a discrete random​ varia

ble, a continuous random​ variable, or not a random​ variable?
Mathematics
1 answer:
Rzqust [24]2 years ago
3 0
Continuous random variable 
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Nick is making bread dough. The recipe requires 3/4 cup of flour and 1 1/8 teaspoon of salt. Nick wants to make the recipe using
madam [21]

Answer:

1\dfrac{1}{2} teaspoon of salt is required

Step-by-step explanation:

The recipe requires 3/4 cup of flour and Nick wants to make the recipe using 1 cup of flour.

The recipe requires  1 1/8 teaspoon of salt and Nick wants to know how much salt he heeds.

Consider short description:

3/4 cup of flour - 1 cup of flour,

1 1/8 teaspoon of salt - x teaspoon of salt.

Mathematically, you can wrte a proportion:

\dfrac{\frac{3}{4}}{1\frac{1}{8}}=\dfrac{1}{x}.

Then

\dfrac{3}{4}\cdot x=1\cdot 1\dfrac{1}{8},\\ \\\dfrac{3x}{4}=\dfrac{9}{8},\\ \\3x\cdot 8=4\cdot 9,\\ \\24x=36,\\ \\x=\dfrac{36}{24}=\dfrac{3}{2}=1\dfrac{1}{2}.

3 0
3 years ago
Seed corn was $5 per bag, whereas dog food cost only $3 per bag. Wewoka bought 50 bags and spent $190. How many bags of dog food
Anuta_ua [19.1K]
Hello!

You can make two equations based on what you know

x + y = 50
5x + 3y = 190

Subtract y from both sides of the first equation

x = 50 - y

Put x into the second equation

5(50 - y) + 3y = 190

Distribute the 5

250 - 5y + 3y = 190

Combine like terms

250 - 2y = 190

Subtract 250 from both sides

-2y = -60

Divide both sides by -2

y = 30

Put y into the first equation

x + 30 = 50

Subtract 30 from both sides

x = 20

She bought 20 seed corn bags and 30 bags of dog food

Hope this helps!
8 0
3 years ago
Read 2 more answers
Step-by-step to reduce the radical of the square root Of 160
notka56 [123]

Answer:

4\sqrt{10}

Step-by-step explanation:

\sqrt{160}

\sqrt{16 * 10}

4\sqrt{10}

because 16 is a perfect square root and it splits into 4 * 4 while 10 isnt a perfect square root so it stays inside.

8 0
2 years ago
Read 2 more answers
A bin contains seven red chips, nine green chips, three yellow chips, and six blue chips. Find the probability of drawing a yell
igomit [66]

Answer:

a) 3/100

Step-by-step explanation:

There are 25 total chips

P(Yellow) = 3/25

With no replacement P(Blue) = 6/24 = 1/4

Multiply 3/25* 1/4= 3/100

3 0
3 years ago
Teh slope between two points is calculated by finding the change in y-values and dividing by the change in x-values. for example
Nimfa-mama [501]
Hi there!

The change of y-values is
- 15 - 22 = - 37
The change of x-values is
7 - - 8 = 7 + 8 = 15

Therefore, the slope of this line is
\frac{ - 37}{15}  =  - 2 \frac{7}{15}

4 0
3 years ago
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