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valentinak56 [21]
2 years ago
10

uanita’s lunch cost $13 plus a 15% tip. What was the total price of her lunch? A. $13.15 B. $14.50 C. $14.95 D. $19.50

Mathematics
2 answers:
masya89 [10]2 years ago
7 0

Answer:

C. $14.95

Step-by-step explanation:

Do $13 times 15 divided by 100 and add that to $13.

Ratling [72]2 years ago
3 0

Answer:

C. $14.95

Step-by-step explanation:

You can find 10% of your bill by moving the decimal one place to the left.  If 26.50 is 100% then 10% is 2.65.  Since 20% is 2 times 10%, 20% of the bill is 2.65 + 2.65 = 5.30.  Now you know the tip you could leave ranging from poor to good, $2.65 to $5.30.  To find 15%, halfway in between, we know 15% is 10% plus 1/2 of 10% (5%).  2.65 plus about 1.30 is 3.95.

Now you have

10% is 2.65 - by moving decimal 1 place left

15% is 3.95 - 10% + 1/2 of 10%

20% is 5.30 - 10% * 2

Hope this helps!

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