Collins Middle School has 240 6th grader students at the 6th grader is 40% of the total School how many students are in the Midd
2 answers:
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Answer:
Explanation:
Given function: f(x) = -2x² - 3x + 20
To find the x-intercepts of a function, f(x) = 0
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-2x² - 3x + 20 = f(x)
-2x² - 3x + 20 = 0
-2x² - 8x + 5x + 20 = 0
-2x(x + 4) + 5(x + 4) = 0
(-2x + 5) (x + 4) = 0
-2x + 5 = 0, x + 4 = 0
-2x = -5, x = -4
x = -5/-2,x = -4
x = 5/2, x= -4
Coordinates: (-4, 0), (5/2, 0)
If the average of x and y is 11 and the average of x, y and z is 5, then the value of z is -7
Given,
The average of x and y = 11
We know average = Sum of the terms / Number of terms
Then, the equation will become
x+y =11×2
x+y =22
Average of x, y and z = 5
x+y+z = 5×3
x+y+z =15
Substitute the value of x+y
22+z=15
z =15-22
x = -7
Hence, If the average of x and y is 11 and the average of x, y and z is 5, then the value of z is -7
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Answer:
From the given picture we can see that , 3 teaspoons = 1 table spoon.....(1)
or 3t=b..(2)
6 teaspoon= 2 tablespoon or 6t=2b
9 teaspoon= 3 table spoon or 9t=3b
Therefore the ratio of teaspoon to tablespoon t:b= 3:1...........(from (1))
Now, 1 tea spoon=..............[divide 3 on both sides of (1)]
or
The equation to show the relation between teaspoons and table spoon is given by (2)
3t=b