Answer:
Formula to calculate cost price if selling price and profit percentage are given: CP = ( SP * 100 ) / ( 100 + percentage profit). Formula to calculate cost price if selling price and loss percentage are given: CP = ( SP * 100 ) / ( 100 – percentage loss )
Step-by-step explanation:
this is the formula you need to use
Answer:
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Step-by-step explanation:
Answer:
Step-by-step explanation:
7/9+1/6+3/5
Least common factor is 90
Multiply
70/90+15/90+54/90
Is 139/90 which is. 1 49/90
Call number: n
=> 3 x (n/3 + 8) = 11
n/3 + 8 = 11/3
n/3 = 11/3 - 8
n/3 = -13/3
n=-13