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lets take
x+y=100 firstly.
then x=100-y equation (i)
Now,
x-y=10
Putting value of x from equation(i)
100-y-y=10
-2y=10-100
-2y=-90
therefore, y=45
Now,
putting value of y in equation(i)
we get
x=100-45
ie x=55
hence, x=55 & y=45
First find 10%
so 17.64/2
= 8.82
then move decimal over one
so $88.2
is the bill
Answer:
Too tired to explain, here's some digital steps by Symbolab:
Answer:
Hey buddy, here is your answer. Hope it helps u.
Step-by-step explanation:
Without adding we can find out the sum. We just need to count how many numbers are there. In this case there are 9. Then we need to sqau the number. So 9 square=81. So without adding the sum the answer is 81.
