mjessen119
25.07.2019 •
Mathematics
(i really need it) write these as algebraic expressions: a) a teacher had 54 pencils gave p pencils to each of his s students. how many pencils does he have left? b) in a party decorations total r balloons were used. there were b blue balloons, twice as many green balloons, and the rest of balloons were yellow. how many yellow balloons were used? c) after a teacher handed out m packs of notebooks with c notebooks in each pack, he has 13 notebooks left. how many notebooks did he have originally? d) total of a pounds of apples and b pounds of plums were packed into n boxes. how many pounds of fruit are there in each box? you!
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Ответ:
Ответ:
Ответ:
Fit for life: 15x+50=0
Set them equal to each other. 10x+90=15x+50. Solve for x. Subtract 50 from both sides, get 10x+40=15x, then subtract 10x from both sides, getting 40=5x. Divide 5 from both sides to isolate x, x=8. After 8 months the two gyms will cost the same.