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2 years ago

there are 12 students who play the clarinet and 16 students who play the viola. what does the ratio 16:12 describe?

1 answer:

6 0

Answer: The ratio 16:12 describes the ratio of the number of students who play the viola to the students who play the clarinet.

Step-by-step explanation:

Given : Number of students who play the clarinet= 12

Number of students who play the viola=16

We know that ratio of A to B is represented by A:B.

Since, the number '12' is representing " students who play the clarinet" and number '16' is representing " students who play the viola"

So , the ratio 16:12 describes the ratio of the number of students who play the viola to the students who play the clarinet.

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A car drives 494 km in 4 hours 45 minutes what is its average speed in kilometers per hour?

Artist 52 [7]

The average speed is 104 kilometer per hour

Solution:

Given that,

A car drives 494 km in 4 hours 45 minutes

To find: Average speed in kilometers per hour

The average speed is given by formula:

$Average\ speed = \frac{distance}{time}$

From given,

Distance = 494 km

Time = 4 hours 45 minutes

We know that,

1 hour = 60 minutes

Therefore,

$45\ minutes = \frac{45}{60}\ hour\\\\45\ minutes = 0.75\ hour$

Thus,

time = 4 hours 45 minutes = 4 hour + 0.75 hour = 4.75 hour

Thus average speed is:

$Average\ speed = \frac{494}{4.75}\\\\Average\ speed = 104$

Thus average speed is 104 kilometer per hour

6 0

2 years ago

Give your own example of an irrational number and explain why the number you chose is irrational

marishachu [46]

Definition
An irrational number is a number that cannot be expressed in as a fraction. It has decimal expression that does not terminate.

An example will be √2.

Reason:
(1) √2 cannot be expressed as a fraction form
(2) √2 has decimals that does not terminate

3 0

2 years ago

Use P = 2(l + w) to find the perimeter (P) of a rectangle where l = 7 ang W = 4

Nady [450]

P= 2(7+4)
P= 2(11)
P= 22

Final answer: 22 units

4 0

2 years ago

Nine less than a number is -24. Find what n is

kakasveta [241]

(-24)+9=-15

(-15)-9=-24

n=-15

7 0

2 years ago

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What is the slope intercept form of y= -2

Mashcka [7]

The slope-intercept form: y = mx + b

(m - slope, b - y-intercept)

We have y = -2. It's the slope intercept form where m = 0 and b = -2.

y = -2 → y = 0x - 2

8 0

3 years ago

there are 12 students who play the clarinet and 16 students who play the viola. what does the ratio 16:12 describe?​

there are 12 students who play the clarinet and 16 students who play the viola. what does the ratio 16:12 describe?