Well you can take out a 7 and y^2 since both have it.
-3y should be your answer because you got rid of 7y^2 and then you have to divide -21/7 to get -3. Also if you take y^2 from y^3 you are left with just a "y".
Answer:
f, it isnt doing anything as going up in units of water
Step-by-step explanation:
Answer:
65
Step-by-step explanation:
if 5 years ago Ben is 26 years old then Jason was 65.
If you multiply 26 by 2.5 then you'll get 65.
Answer:
Step-by-step explanation:
![~~~~~~~\dfrac{10}{3} \cdot 3^x - 3^{x-1} = 81\\\\\\\implies 10 \cdot 3^{x-1} - 3^{x-1} = 81~~~~~~~~~~~~~~~~~~~~;\left[\dfrac{a^m}{a^n} =a^{m-n} \right]\\\\\\\implies 9\cdot 3^{x-1} = 81\\\\\\\implies 3^{x-1} = \dfrac{81}{9}\\\\\\\implies 3^{x-1} = 9\\\\\\\implies 3^{x-1} = 3^2\\\\\\\implies x -1 = 2\\\\\\\implies x = 2+1\\\\\\\implies x = 3](https://tex.z-dn.net/?f=~~~~~~~%5Cdfrac%7B10%7D%7B3%7D%20%5Ccdot%203%5Ex%20-%203%5E%7Bx-1%7D%20%3D%2081%5C%5C%5C%5C%5C%5C%5Cimplies%2010%20%5Ccdot%203%5E%7Bx-1%7D%20-%203%5E%7Bx-1%7D%20%3D%2081~~~~~~~~~~~~~~~~~~~~%3B%5Cleft%5B%5Cdfrac%7Ba%5Em%7D%7Ba%5En%7D%20%20%3Da%5E%7Bm-n%7D%20%5Cright%5D%5C%5C%5C%5C%5C%5C%5Cimplies%209%5Ccdot%203%5E%7Bx-1%7D%20%3D%2081%5C%5C%5C%5C%5C%5C%5Cimplies%203%5E%7Bx-1%7D%20%3D%20%5Cdfrac%7B81%7D%7B9%7D%5C%5C%5C%5C%5C%5C%5Cimplies%203%5E%7Bx-1%7D%20%3D%209%5C%5C%5C%5C%5C%5C%5Cimplies%203%5E%7Bx-1%7D%20%3D%203%5E2%5C%5C%5C%5C%5C%5C%5Cimplies%20x%20-1%20%3D%202%5C%5C%5C%5C%5C%5C%5Cimplies%20x%20%3D%202%2B1%5C%5C%5C%5C%5C%5C%5Cimplies%20x%20%3D%203)
A) Volume of a cube is found by multiplying its side by itself twice.
V = a³
V = 4³ = 4 * 4 * 4
V = 64 ft³
b) 1 cubic foot = 7.48 gallons of water.
total gallons of water = 64 ft³ x 7.48 gallons = 478.72 or 479 gallons rounded up to the nearest gallon.
