Let x be the number of boys, then,
(3*x*18+x*y)/(3x+x)=17
(54+y)/4=17
y=14 points each boy.
Answer:
D
Step-by-step explanation:
It goes -1.33333, -2, -1, -.08, -.07 and that's incorrect.
Answer:
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Answer:
x = 4
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin45° =
, then using the upper 45°
sin45° =
=
=
( cross- multiply )
x = 4