Answer:
145
Step-by-step explanation:
Divide 48 by 7 = 6≅. then add 6 to 139. 145
10/5 = 1/x
cross multiply
10x = 5
x = 5/10
x = 1/2...u need 1/2 gallon per fish
I assume the equation is supposed to be

Then we can write

Take the logarithm of base 3/8 on both sides:



- - -
If the equation is actually
, I'm afraid it cannot be solved exactly.
Answer:
9
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
Okay, so we know that Base*Length=Area, so we just have to divide the area by the base, so the formula here is Area/Base=Length.
That would get us 120/8=Length,
and if we just divide 120 by 8 we get 15, so the length is 15