3. A = 1/2bh
Solve for b

2( A/h ) = b

Step-by-step explanation:

A = 1/2 ( b ) ( h )       Write out the equation. Divide h on both sides

A/h = 1/2 ( b )           Multiply 2 on both sides

2( A/h ) = b               Final Equation

Example:             50 = 1/2 ( b ) ( 10 )

                       50/10 = 1/2 ( b )        

                 2( 50/10 ) = b    

                        2( 5 ) = b

                             10 = b

answer: slight chance that it will happen

step-by-step explanation:

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.