bakoeboo
27.06.2019 •
Mathematics
Does anyone know how to do this i need asap!
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Ответ:
Solution (20,40)
20 large snack packs and 40 small snack packs were sold
Step-by-step explanation:
x+y=60
5x+3y=220
x+y=60
x=60-y
5(60-y)+3y=220
-2y=-80
y=40
x+y=60
x+40=60
x=20
Hope this helps
Ответ:
11-3i-4-5i
=11-4-3i-5i
=7-8i