Related Questions

To produce an old photograph, a photographer charges x dollars to make a negative, 3x/5 dollars for each of the first 10 prints, and x/5 dollars for each print in excess of 10 prints. If 45 dollars is the total charge to make a negative and 20 prints from an old photograph, how many dollars the photographer charges to make a negative?
A 3
B 3.5
C 4
D 4.5
To produce an old photograph, a photographer charges x dollars to make a negative 3x/5 dollars for each of the first 10 prints, and x/5 dollars for each print in excess of 10 prints. If 45 dollars is the total charge to make a negative and 20 prints from an old photograph, how many dollars the photographer charges to make a negative?
A 3
B 3.5
C 4
D 4.5
নিচের কোন আয়নটি o2- এর সম-ইলেকট্রন বিশিষ্ট? (Which ion of the following has the same number of electrons as an o2- ion?) 
A K+
B Mg2+
C Cl-
D S2-
নিচের কোনটি Negative ion?
A Chloride
B Sodium
C calcium
D Magnesium
Which among the following will be a negative ion?
A If it has more electrons than protons
B If it has more electrons than neutrons
C If it has more protons than electrons
D If it has more protons than neutrons
If x is negative , all BUT which of the following must also be negative?
A x3
B 1/x3
C 1/x
D 1/x2
In each expression below , N represents a negative integer . Which expression could have a negative value?
A N(square)
B 6-N
C -N
D 6+N
If x is negative , which of the following must also be negative?
A (-X3)2
B (-1)x
C 1-x
D x3-x2
If the product of 6 integers is negative , at most how many of the integers can be negative ?
A 2
B 3
C 4
D 5
If AB is negative, which of the following cannot be negative?
A B - A
B A2B
C AB2
D A2B2

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