Answer:
6 weeks
Step-by-step explanation:
Set up a proportion where x is the amount of time with 12 pupils:
=
Cross multiply and solve for x:
4x = 24
x = 6
So, it will take 12 pupils 6 weeks to complete the job.
-3y≥72
divide both side by (-3)
-3y/-3 >= 72/-3
Simplify
y >= -24
Step-by-step explanation:
81×1/4
=20.24
this is the answer
Answer:
500/31.25=16
Step-by-step explanation:
The school bought 16 calculators
I agree with the answer above me but i don’t rly know history so good luck