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September 22, 2014

September 22, 2014

Posted by **brianna** on Tuesday, January 13, 2009 at 7:09pm.

- math (ugh) -
**Ms. Sue**, Tuesday, January 13, 2009 at 7:24pm0.04x = 1.25

x = 1.25/0.04

x = 31.25

31.25 * 1.15 = ??

- math (ugh) -
**brianna**, Tuesday, January 13, 2009 at 7:47pmwhere did you get the 1.15, do u mean 1.25?

- math (ugh) -
**Ms. Sue**, Tuesday, January 13, 2009 at 8:03pm1.15 is the amount of the tip plus the meal.

You could also do it this way.

31.25 * 0.15 = 4.69

31.25 + 4.69 = ?

- math (ugh) -
**math (whoopie!!!)**, Tuesday, January 13, 2009 at 8:09pmTAX: $1.25

RATE: 0.04

TIP: 0.15

TOTAL = MEAL + TIP

MEAL = TAX/RATE = $1.25/0.04 = $31.25

TIP = MEAL*TIP PERCENTAGE = $31.25*0.15 = $4.69

TOTAL = MEAL + TIP = $31.25 + $4.69 = $35.94

(or, instead of adding the tip to the meal, you could multiply the meal by 1.15, which is like multiplying the meal by 0.15 and then adding that to the meal to get the tip + meal)

- math (ugh) -
**ms.sue**, Monday, May 12, 2014 at 10:04pm37.19

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