Percentage of students that are girls in the class = 60%
Number of girls in the class = 18
Let us assume the total number of students in the class = x
Then
60% * x = 18
(60/100) * x = 18
6x/10 = 18
6x = 18 * 10
6x = 180
x = 180/6
= 30
So the total number of students in the class is 30.
Number of boys in the class = 30 - 18
= 12
So there are 12 boys in the class. I hope the procedure is simple enough for you to understand.
<span>The table to represent a linear function with a rate of change of +5
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so, m = 13 + 5 = 18
The correct answer is option 3 ⇒ <span>m = 18
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another solution :
The table represents a linear function
the general equation of the linear function is ⇒ y = ax+b
where a is the slope and b is constant
By using the first and the third points from table to find the equation of the linear function
at x = 3 ⇒ y = 13 and at x = 5 ⇒ y = 23
∴ 13 = 3a+b → (1)
23 = 5a+b → (2)
solve (1) and (2) to find a and b
So, a = 5 and b = -2
∴ y = 5x - 2
After that by substitution with x = 4 int the equation of y
∴ y = 5*4-2 = 18
∴ m = 18
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Answer:
7
Step-by-step explanation:
There's a 1 in 10 chance that you get the first place correct. Next, since there are 9 horses left to choose from since the same person or something can't be first and second , there's a 1 in 9 chance for second place and 1/8 for third using that logic. Multiplying them all together, we get a 1/720 chance of guessing all three right
