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Katyanochek1 [597]
3 years ago
10

Mr liston bought lunch for $ 12.80. He gave the waiter a tip of 15 %. How much money did the waiter recieve?

Mathematics
2 answers:
Serga [27]3 years ago
5 0
The answer would be B, because 12.80 times .15 is 1.92
antoniya [11.8K]3 years ago
4 0
Okey dokey Bright. So, in this question all you have to do is to multiply 12.80 by 0.15, since the tip is 15% and you are taking 15% from 12.80.

 12.80 · 0.15 = 1.92.

The correct answer is B: $1.92.

Hope this helped!



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Simplify into a binomial
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Answer:

x-5

Step-by-step explanation:

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3x^3-15x^2+15x-75\\ \\=3x^2(x-5)+15(x-5)\\ \\=(x-5)(3x^2+15)

Therefore, given expression can be rewritten as

\dfrac{(x-5)(3x^2+15)}{3x^2+15}=x-5

Note that 3x^2+15\neq 0, so we can divide the numerator and the denominator by non-zero expression 3x^2+15.

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3 years ago
The area of a square garden is 128m sqared.how long is the diagonal
weqwewe [10]

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The diagonal is the hypotenuse of the right triangle you get
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luda_lava [24]

Answer:

y = -28 ÷ x

Step-by-step explanation:

The standard format of a inversely proportional equation goes by the format of y = k ÷ x. The question asks us to write an equation if y = 7 when x = -4 and y varies inversely with x.

So we substitute the values y = 7 and x = -4 in the equation y = k ÷ x

K = constant, we have to work this out

7 = k ÷ -4

7 × - 4 = k

k = - 4 × 7

k = -28

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Alex_Xolod [135]

Answer: The total amount the water change was -28 gallons by the end of the week <u>OR</u> The total amount the water changed decreased 28 gallons by the end of the week. Depending on how you want to word it.

Hope this helps!

Step-by-step explanation:

<u>Create you equation:</u>

x = the total amount the water changed

d = the amount of days

x = -4d

<u />

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