so assuming the tank is just a big tall rectangular box-like tank.
well, the volume of a rectangular prism is simply the product of its length, height and width. So the volume for this one will be 40 * 36 * 18, or 25920 ft³.
if we fill that up to only 5/6, not the whole tank, how much is 5/6 of 25920? well, is really just their product, namely 21600 ft³.
and then we dump 1/3 of that 21600, how much is that anyway? well 1/3 of 21600 is really just their product, so 7200 ft³.
so we had 21600 ft³ of water, and dumped 7200 ft³, we're left only with 21600 - 7200, or 14400 ft³.
Divide both sides by 2
subtract 10 from both sides
2(x + 10) = 60
x + 10 = 60/2
x + 10 = 30
x = 30 - 10
x =20
subtract 20 from both sides
divide both sides by 2
2x + 20 = 60
2x = 60 - 20
2x = 40
x = 40/2
x = 20
the same
are
They all have 4 sides, there are 2 shorter sides and 2 longer sides and the two short sides are parallel to each other, and the two long sides are parallel to each other.
Answer:
x = - 10
Step-by-step explanation:
−3/4(x+2)=6 Multiply both sides by -4/3
- 4/3 * - 3/4 ( x + 2) = 6 * - 4/3 Simplify
(x + 2) = - 8 "Remove" the brackets
x + 2 = - 8 Subtract 2 from both sides.
x + 2 - 2 = - 8 - 2 Simplify
x = - 10
