Advertisements
Advertisements
प्रश्न
Which out of the following are expressions with numbers only?
- y + 3
- (7 × 20) − 8z
- 5 (21 − 7) + 7 × 2
- 5
- 3x
- 5 − 5n
- (7 × 20) − (5 × 10) − 45 + p
उत्तर
It can be observed that the expressions in alternatives (c) and (d) are formed by using numbers only.
APPEARS IN
संबंधित प्रश्न
Identify the monomials, binomials, and trinomials in the following:
xy + yz − zx
Add
x3 + y3 − z3 + 3xyz, − x3 + y3 + z3 − 6xyz, x3 − y3 − z3 − 8xyz
Subtract:
−7x from 9y
Subtract:
a − 2b − 3c from −2a + 5b − 4c
Subtract:
−11x2y2 + 7xy −6 from 9x2y2 −6xy + 9
‘One third of a number added to itself gives 8’, can be expressed as `x/3 + 8 = x`.
The denominator of a fraction is 1 more than its numerator.
Sharad used to take p cups tea a day. After having some health problem, he takes p – 5 cups of tea a day.
Identify the operations (addition, subtraction, division, multiplication) in forming the following expression and tell how the expression have been formed.
7m, − 7m + 3, − 7m − 3
Five times a number increased by 7 is 27.
