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alliemeade1
29.07.2019 •
Mathematics
In mrs marshall's classroom 6/7 of the students play sports. of the students who play sports, 4/5 also play an instrument. if there are 35 students in her class how many play sports and an instrument?
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Ответ:
Ответ:
x=-7
y=-22
Step-by-step explanation:
set them equal to each other
4x+6=2x-8
4x-2x=-8-6
2x=-14
x=-7
y=4(-7)+6
y=-28+6
y=-22
y=2(-7)-8
y=-14-8
y=-22