31/2 ÷ 7
= 31/2 ÷ 7/1
= 31/2 × 1/7
= 31/14
= 2/3/14
i am a mathematics teacher. if anything to ask please pm me
A
x=y^2-9
x+9=y^2
square root both sides
+-sqrt(x+9)
Answer:
I got -2.7
Step-by-step explanation:
Answer:
Step-by-step explanation:
i dont know the exact answer ..but i know that the hours would be a larger number and first you need to find out how many ours 1 pump takes so you do 3 divided by 7 which on the calculator its 0.4...
after this you times it but i dont know by what
