The first pipe fills 1/8 of a pool in one hr.
The second pipe fills 1/4 of a pool in one hr.
(1/8+1/4)2= 3/4 done by the first two pipes in 2 hours.
Therefore the last pipe must do 1 1/4 of the filling in 2 hours, which is 5/8 per hour.
5/8x=1
x=8/5
It takes the third pipe 1 hour and 36 minutes to fill it by itself.
Answer:
1/8 is smaller than 2/5, and 2/5 is smaller than 1.125
Step-by-step explanation:
this is because 1/8 = 5/40 and 2/5 = 16/40
Answer:
x = 45/13, also x = 3 6/13
Step-by-step explanation:
is = equal sign
of = multiply
<u>Equation:</u>
To do this, you could easily do communitive property of multiplication, but to make it more understandable I will use reversing.
1. Simplify. Multiply - Divide.

2. Factor out common term 5.

3. Multiply both sides by 3.

4. Expand.

5. Add <em>10x</em> to both sides.

Simplify. <em>3x + 10x = 13x.</em>

Divide both sides by 13.

Mixed Number =
.
You can also use distributive property. The formula for this problem is:
.
Using the given info, we can determine that

simplify

multiply both sides by -a
and divide each side by -2

A = 4
Integers are like whole numbers, but they also include negative numbers so true