The original number is 7 i think.
10(x^2) = 70x
10x^2 - 70x = 0
x^2 -7x =0
Δ= b^2 -4ac
where c doesnt exist=0
Δ= 49
-b ± √Δ /2a
7 ± √49 /2
7±7/2
x is either 14/2= 7
or 1/2, which doesnt work.
Lets see:
10(7^2) = 70•7
10•49 = 490
and that is right.
i hope my logic is correct.
Answer : Mrs Thomas will need the amount of $9.73 to cover her garden.
Hope this helps. - M
Answer: 8:12,8to12
Step-by-step explanation:
Answer:
It's 2 1/4
Step-by-step explanation:
I dont know how to explain this... but I'm 100% positive on the answer so
The answer is 30 because 5×6=30 and 6×5=30.So the smallest number of books each could have shelved is 30 books...
