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Ede4ka [16]
3 years ago
13

On Saturday, 45% of the music Brianna listened to was country songs. She listened

Mathematics
1 answer:
storchak [24]3 years ago
8 0

Brianna listen 60 songs on Saturday !

<u>Step-by-step explanation:</u>

Here we have , On Saturday, 45% of the music Brianna listened to was country songs. She listened  to 27 country songs on Saturday. How many songs did Brianna listen to on  Saturday .Let's find out:

Let Brianna listens x songs ! So , 45% of x songs is 27 songs , i.e.  On Saturday, 45% of the music Brianna listened to was country songs. She listened  to 27 country songs on Saturday as :

⇒ \frac{45(x)}{100} =27

⇒ \frac{45(x)}{100}(\frac{100}{45}) =27(\frac{100}{45})

⇒ x =27(\frac{100}{45})

⇒ x =\frac{2700}{45}

⇒ x =60

Therefore , Brianna listen 60 songs on Saturday !

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How much sugar syrup would you get by:<br> Making 70% sugar syrup using 350g sugar?
zvonat [6]

Answer:

You will get 500g of sugar syrup.

I already answered this question.

You can get the answer by taking mass/mass% = 350/x

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Therefore x = 500g of sugar syrup


8 0
2 years ago
By taking  = 3.141 and
Whitepunk [10]

The value of the expression 1/√2 + π where the given parameters are π = 3.141 and  √2 = 1.414 is 3.848

<h3>How to evaluate the expression?</h3>

The given parameters are

π = 3.141

√2 = 1.414

The expression to evaluate is given as:

1/√2 + π

Start by substituting π = 3.141 and √2 = 1.414 in the expressions 1/√2 + π

1/√2 + π = 1/1.414 + 3.141

Evaluate the quotient

1/√2 + π = 0.707 + 3.141

Evaluate the sum

1/√2 + π = 3.848

Hence, the value of the expression 1/√2 + π where the given parameters are π = 3.141 and  √2 = 1.414 is 3.848

Read more about expressions at:

brainly.com/question/723406

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<u>Complete question</u>

By taking π = 3.141 and √2 = 1.414, evaluate 1/√2 + π up to three places of decimals.

8 0
1 year ago
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3 years ago
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2 years ago
There are six apples, five oranges, and one pear in John's basket. ​ ​His friend takes three pieces of fruit at random without r
Lera25 [3.4K]

Answer:

<h2>There is a 9% of chances that all three selections are apples.</h2>

Step-by-step explanation:

We know that there are 6 apples, 5 oranges and 1 pear, which gives a total of 12 fruits, that's total number of possible outcomes, the denominator of the simple probability.

Now, his friend selects three fruits with three trials without replacement, that means we need to find the probability of each even and then multiply them, because they are independent events.

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Notice that we calculated the total probability using the same expression. The important thing is that you need to decrease the number of events and the total number of outcomes at each selection, because after his friends picks one apple, he doesn't put it back in the bag.

Therefore, there is a 9% of chances that all three selections are apples.

(We multiplies the number by 100 to express it in percentage)

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