11. liam, lidea, lisa and larry bought a
gift for their soccer coach. the total
cost of the gift, including tax, was
$55.80. liam paid $14, lidea paid
of the cost, lisa paid 25% of the
cost, and larry paid the remaining cost.
who paid the greatest part of the cost?
prove mathematically!

Liam $14

Lidea 1/3 cost = $18.60

Lisa 25% = $13.95

Larry = $9.25

Explanation:

Liam’s amount was given= $14

Lidea: 1/3 of $55.80 =$18.60

Lisa: 55.80 x .25 =$13.95

Lary: add up Liam’s, Lidea’s and Lisa’s payments ($46.55) and subtract that from $55.80 = $9.25

Lidea paid the greatest amount of the cost, as $18.60 is the highest amount paid between all of the friends.

Good luck!

ian gonna lie that is way to much

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.