How do I show this on paper. I know the answer is $56.00. Only because I eat out alot, and can figure the tip easy, but to show this on paper yikes... Selena left a 15% tip for a meal. The tip was $8.40. What was the cost of the meal before the tip?

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How do I show this on paper. I know the answer is $56.00. Only because I eat out alot, and can figure the tip easy, but to show this on paper yikes... Selena left a 15% tip for a meal. The tip was $8.40. What was the cost of the meal before the tip?

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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Cross multiply!

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sorry I am looking at your graft, and i can only read tip: percentage 8.4 : 15 then something? : 100. Am I cross multiplying 8.4 x15 to multiply to 100? Im not sure what your demonstrating sorry...
let 'x' be the cost of meal. 15% tip for a meal = 8.4 so, 15% of x = 8.4 (15/100 ) x = 8.4 can you find 'x' from here ?
something = x. Actually we use the ratio method here. he first ratio we were given was $8.5 corresponds to 15%. |dw:1359350664298:dw| We have to find the 100% value of the tip (which will be the cost of the meal) |dw:1359350678428:dw| And then we cross multiply.
dont understand how you come up with third step the 15/100 x 8.4? so I dont know how to find x sorry?
x % means x/100 15 % means 15/100 15% of x = (15/100)x = 15x/100 = 8.4 now can you find 'x' ? first multiply both sides by 100 to eliminate the denominator, what u get ?
*both sides of 15x/100 = 8.4 by 100...
Ty

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