stinematesa
15.04.2020 •
Mathematics
Please help your girl out with this question!! I’ll brainlist u if you help me
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Ответ:
x is the number of plates which costs $5 and y is the number of $10 plates.
the equation: 5x + 10y = 900 and y=2x
by solving these two equations, x=36 and y= 72, so the total number of plates is 108