Question

which of these following are expressions with numbers only?
y+3
(7x20)-8z
5(21-7)+7x2
5
3x
5-5n
(7x20)-(5x10)-45+p

Answer 1

Answer:

Answer for this question

correct answer is 5(21-7)+7×2

Answer 2

Answer:

(a) y+3

here we have variable y

so it is not an expression with numbers

(b) (7×20 )-8z

we have variable z

so it is not an expression with numbers

(c) 5(21-7)+7×2

since there is no variable

so it is an expression with numbers

(d)5

since there is no variable

so it is an expression with numbers

(e) 3x

here we have variable x

so it not an expression with numbers

(f)5-5n

here we have variable n

so it is not an expression with numbers

(g) (7×20)-(5×10)-45p

here we have variable p

so it is not an expression with numbers

Hope it helps you......