Answer:
Step-by-step explanation:
L=3S
In 5 years,
L+5=2(S+5)
L+5=2S+10
L=2S+5
Substituting from above,
3S=2S+5
S=5
So then,
L=3(5)
L=15
15 boxes=3m=300cm
1 box=300cm÷15
=20cm
ok cool thanks
Original price×(1-discount price)=new price or sale price so
Put x in original price...x(1-45/100)=550
So the original price is 1000
Khan Academy is awesome.
Khan Academy has videos to help you learn and solve problems, which is pretty resourceful.
