caridad56
03.06.2021 •
Mathematics
2y+ 3x = 87 and y=6x+21
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Ответ:
x=3 and y=39
Step-by-step explanation:
2y + 3x = 87
y = 6x + 21
2(6x+21) + 3x = 87
12x + 42 + 3x = 87
15x + 42 = 87
15x = 45
x = 3
y = 6(3) + 21
y = 18 + 21
y = 39
Ответ:
25%
Step-by-step explanation:
24/32=0.75
100-0.75= 0.25
So 25% off.
Hope that helped! (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧
( ﾟдﾟ)つ Bye