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aleksandrvk [35]
3 years ago
5

You and your best friend go out to dinner. The server was so good that you want to leave a 20% tip. Your food bill was $25.50. W

hat should you leave for a tip?
Mathematics
1 answer:
lys-0071 [83]3 years ago
6 0

Answer:

$5.10

Step-by-step explanation:

We need to find 20% of 25.50

Multiply 20% * 25.50

Change to a decimal

.20 *25.50

5.10

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Alina [70]

The top is 4ft by 2 ft, area = 4 * 2=8 square feet.

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The bottom equals the top = 8 square feet.

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The left side is 1 1/2 ft by 2 ft = 2 * 1.5 = 3 square feet.

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A cash register contains $10 bills and $20 bills with a total value of $520. If there are 32 bills total, then how many of each
ohaa [14]

12 is the number of $10 bills

20 is the number of $20 bills

<u><em>Step-by-step explanation:</em></u>

<u><em /></u>

Hello,

<u>Let's note</u>

a    the number of $10 bills

b    the number of $20 bills

The total value is $520 so we can write the first equation (1)

    \boxed{\sf 10a \ + \ 20b \ = \ 520 }

We know that there are 32 bills in total so we can write the second equation (2)

    \boxed{\sf a \ + \ b \ = \ 32 }

(1) - 10*(2) gives

10a + 20b - 10(a+b) = 520 - 320 = 200

10a + 20b - 10a - 10b = 10b = 200

So b = 200/10=20

and then from (2) a = 32 - 20 = 12

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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Simplify 3 square root of -96
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Your Welcome

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