Based on the ratio, 6 students play musical instruments.
The mentioned problem can be solved using the concept of ratio and proportion. We will equate the two ratio. Let us assume the number of students who play musical instruments be x.
Forming the equation -
3 : 20 = x : 40
Rewriting the equation with respect to x
x = (40 × 3) ÷ 20
Performing multiplication and division on Right Hand Side of the equation
x = 120 ÷ 20
Performing division on Right Hand Side of the equation
x = 6
Therefore, 6 students play musical instruments.
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Answer:
Mean =13, Median=9, Mode =7, Range=43
Step-by-step explanation:

(1)Mean


<u>Median</u>
First we arrange the sales in ascending order
7,7,7,8,9,9,10,11,12,50
Since there are two terms in the middle, the Median =(9+9)/2 =9
<u>Mode</u>
The mode is the number of sales with the highest frequency.
Mode =7
<u>Range</u>
Range =Highest Value - Lowest value =50-7=43
(b)Mean =13, Median=9, Mode =7, Range=43
The Median seems to best represent the ten numbers. this is as a result of the fact that the value of the Mean and range were affected by the outlier number(50).
The School should therefore order T-Shirts in the range of the Median.
Answer:
I think Thts the answer
Step-by-step explanation:
(12x4)-3
we can turn any decimal number to a fraction by <u>using as many zeros at the bottom as there are decimals and losing the dot atop</u>, so let's see, we have 3 decimals in this case, so we'll use 3 zeros at the bottom.

recall that to turn an improper fraction to mixed, we divide numerator by denominator, and the quotient is the number alone and the numerator is the remainder of the division.
Answer:
-9°F
Step-by-step explanation:
0, 4, 14 are all greater than -9