If B and C are variable quantities, which of these is an equation involving B and C ?
(a) 2 B + C (b) C − B (c) C + B (d) C = B + 5 (e) 10 + 2 B C
I think its either B or C but im not for sure though because its asking which one of these is an equation involving B and C
I don't see an equal sign in either (b) or (c)
http://dictionary.reference.com/browse/equation
To identify an equation involving B and C, we need to look for an expression where B and C are combined using an equality sign (=) or a mathematical operation (such as addition, subtraction, multiplication, or division).
Let's analyze the options one by one:
(a) 2B + C: This is an expression showing addition, but it is not an equation since there is no equality sign.
(b) C - B: This is an expression showing subtraction, but it is not an equation since there is no equality sign.
(c) C + B: This is an expression showing addition, but it is not an equation since there is no equality sign.
(d) C = B + 5: This is an equation involving B and C, as it demonstrates equality between C and B + 5. This means that the value of C is equal to the value of B plus 5.
(e) 10 + 2BC: This expression combines the variables B and C using multiplication but, similar to the previous options, it is not an equation since there is no equality sign.
Therefore, the only equation involving B and C is option (d) C = B + 5.