Although the problem above may look really different or much harder than any equation we have solved before, guess what?! It’s not! We still use the same properties to solve these kinds of equations. On the left side of the equation you have a fraction with a numerator of (4b+8) and a denominator of (2). The variable is in the numerator of the fraction so we will need to get rid of the denominator first. The numerator is being DIVIDED by the denominator so how do we undo division? We multiply! Multiply both sides by the denominator, 2, and simplify.

(2)4b+82=10(2)

4b+8=

Now we have a simple two-step equation. Subtract 8 from both sides.

4b=

Lastly, divide both sides by 4 to isolate the variable.

b=

As always, we can check our work by plugging our answer back into our original equation.

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.

no solution

step-by-step explanation:

there is not enough information in the problem to solve.

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation: