2 years ago

20% tip on a bill of 31.60

Mathematics

1 answer:

vfiekz [6]2 years ago

7 0

Answer:

6.32

Step-by-step explanation:

There's an easy trick for this. Move the decimal point once to the left, and then multiply by 2.

31.60 turns into 3.16 (which is 10% btw)

Multiply 3.16 by 2 and you get 6.32, or 20% of 31.60. Hope this helped!

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Answer:

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Step-by-step explanation:

Step 1: Define

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f(x + h) means that x = (x + h)

f(x) is just the normal function

Step 2: Find difference quotient

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