Answer:
77 centigrams = .077 decagrams
Step-by-step explanation:
Because 1 centigram = .001 decagram
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Sum means to add. Let's call our number n.
n+15
We multiply this whole thing by 6.
6(n+15)
And this is -42.
6(n+15)=-42
We use distributive property to undo the parentheses.
6n+90=-42
We subtract 90 from both sides.
6n=-132
We divide both sides by 6.
n=-22.
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The shot was blocked between 0.84 and 0.85 seconds after the shot is launched.
<h3>what will be the time in which the blocker will block the ball?</h3>
The given equation for ball height

The equation for the blocker's height will be

But, the shot is made before two-tenths of a second or 0.2 seconds therefore modified equation for ball height is

Now for the shot to be blocked, the height of the shot-blocker must be greater than the height of the ball which is shot before 0.2 seconds :






Thus the shot was blocked between 0.84 and 0.85 seconds after the shot is launched.
To know more about the Equation of motions follow
brainly.com/question/25951773
Ratio= 2:3 add them together= 5. 20 divided by 5= 4.
4x2=8
3x4=12
8 girls and 12 boys