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2 years ago

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Joey has a playlist that he listens to on his walk to school each morning. The songs are played at random, and none of the songs

are repeated until they've all played. His playlist contains 5 country songs, 3 alternative songs, and 4 hip-hop songs. What is the probability that the first two songs that play are both country songs?

1 answer:

Olin [163]2 years ago

5 0

Answer:

the answer is 60country songs

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There are 81 red, blue and yellow

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Step-by-step explanation:

Here Given

Total counters = 81

red counters are 9 more than the yellow ones.

And Yellow counter = blue counter

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A population of mice is increasing exponentially. On Monday there were 120 most. One month later there were 132 most. Ready func

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Answer:

$y=120 * 1.1^x$ --- function

The monthly rate is 10%

Step-by-step explanation:

Given

Let

$x \to months$

$y \to mice$

So, we have:

$(x_1,y_1) = (0,120)$ --- Monday

$(x_2,y_2) = (1,132)$ --- One month later

Required

The function

The function is represented as:

$y=ab^x$

In $(x_1,y_1) = (0,120)$ , we have:

$120 = a * b^0$

$120 = a * 1$

$120 = a$

$a=120$

In $(x_2,y_2) = (1,132)$ , we have:

$132 = a * b^1$

$132 = a * b$

Substitute: $a=120$

$132 = 120 * b$

Solve for b

$b = \frac{132}{120}$

$b = 1.1$

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$y=ab^x$

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$y =a(1 + r)^x$

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