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rodikova [14]
3 years ago
8

May you run 7 miles in 50 minutes at the same rate how many miles would she run in 75 minutes​

Mathematics
1 answer:
Tcecarenko [31]3 years ago
8 0

ok well you would set up an equation 7miles/50 mins=xmiles/75mins then you would cross multiply 7*75=50x

then you simplify 525=50x

then divide both sides by 50 and you end up with 10.5

so she would run 10.5 miles in 75 minutes

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F(x) = x2 + 1<br> What is f(f(x))?<br> O A+ 2x2+1<br> A+ 2x2+2<br> O A +2<br> O A+1
Gennadij [26K]

Answer:

Your answer is x^4 + 2 x^2 +2

Hope that this is helpful. Vote and like it

6 0
2 years ago
Someone please help!!!!!
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3 years ago
Which type of variation is modeled in the table?
Mamont248 [21]

Answer:

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8 0
2 years ago
Sam started a dog-walking business. He charges $5 for each dog for a thirty-minute walk. How much dor
solong [7]

Answer: \$10,\ \$5

Step-by-step explanation:

(a) Given

Sam charge $5 for each dog for a thirty minute walk

For an hour which is double the thirty minutes, it must be double of the same charge.

\Rightarrow 2\times 5=\$10

(b)Given

With $20, Christie sells 100 cups of lemonade with a quarter per cup charge

For 100 cup, she generate a revenue of

\Rightarrow \dfrac{1}{4}\times 100\\\\\Rightarrow \$25

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7 0
3 years ago
Suppose you just purchased a digital music player and have put 12 tracks on it. After listening to them you decide that you like
Vilka [71]

Answer:

a) 9% , not unusual

b) 42.4%

c) 48.4%

d) 11.1% , 44.4% , 44.4%

Step-by-step explanation:

We have the following information from the statement:

n = 12

r = 4

a)  

P (likebothofthem) = P (likefirstsong) * P (likesecondsong)

P = 4/12 * 3/11

P = 0.09 = 9%

The probability is not unusual, unusual is considered less than 0.05 or 5%

b)

P (likeneither) = P (notlikefirstsong) * P (notlikesecondsong)

P = 8/12 * 7/11

P = 0.424 = 42.4%

c) P (likeexactlyoneofthem) = P (firstsongliked) * P (secondsongnotliked) + P (firstsongnotliked) * P (secondsongliked)

P = (4/12 * 8/11) + (8/12 * 4/11)

P = 0.484 = 48.4%

d)

a)

P (likebothofthem) = P (likefirstsong) * P (likesecondsong)

P = 4/12 * 4/12

P = 0.111 = 11.1%

The probability is not unusual, unusual is considered less than 0.05 or 5%

b)

P (likeneither) = P (notlikefirstsong) * P (notlikesecondsong)

P = 8/12 * 8/12

P = 0.444 = 44.4%

c) P (likeexactlyoneofthem) = P (firstsongliked) * P (secondsongnotliked) + P (firstsongnotliked) * P (secondsongliked)

P = (4/12 * 8/12) + (8/12 * 4/12)

P = 0.444 = 44.4%

8 0
3 years ago
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