luckylady
28.12.2019 •
Mathematics
Mrs. ulrich has 3 times as manymarkers as colored pencils. the total number of markers and colored pencilsis 84. how many markers foesmrs. ulrich have?
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Ответ:
x=y=84
3y+y=84
4y=84
y=21
x=3y
x=63
She has 63 markers.
Ответ:
If angle A = 71 then angle B = 54.5. The height of the altitude is: tan(54.5o) = height/(AB/2) = h/(6/2) = h/3