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Nookie1986 [14]
2 years ago
10

NEED ANSWER ASAP + BRANLIEST

Mathematics
2 answers:
adoni [48]2 years ago
7 0
Answer:
x= 1- square root of 13
x=1+ square root of 13
lutik1710 [3]2 years ago
4 0

Answer:

x=1 -/+ (root 13)

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

First we need to find the tip.  We know it was 18% of the total. So...

x (the variable we need to find)         18%

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cross multiply

100x = 181.44

--------------------   (divide by 100 to get x by itself)

100

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So now we know how much the tip was, we subtract it from the bill

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