Expressing Mathematical Operation in Terms of an Equation

Q.

The perimeter of a square of side 14 cm will be:

1. 42 cm

2. 28 cm

3. 56 cm

4. 196 cm²

Q. The product of a number and 7 is 56 can be written as:

1. $x\times 7=56$
2. $x\times 7=56\times x$
3. $x\times 56=7$
4. $x=56\times 7$

Q.

The perimeter of a square is 20 cm, area is

1. 39 cm²

2. 25 cm²

3. 29.06 cm²

4. 39.1 cm²

Q.

When a is added to twice of b, the result is 6.

Represent in the form of an equation.

1. 85.48m

2. 79.48m

3. 73.98m

4. 75.48m

Q.

$\_\_\_\times 17=51$

Q. If the perimeter of a square is equal to 40 cm, then the length of its side is _______ cm.

1. 10
2. 8
3. 20
4. 16

Q.

If 5 is added to three times the product of two numbers $m$ and $n$, then the expression will be _______.

1. $5+mn$

2. $m+3n+5$

3. $5+3mn$

4. $(mn+5)\times 3$

Q. An isosceles triangle has a measure of 'p' units for its equal sides and 'q' units for its unequal side. What is its perimeter?

1. 2(p + q) units
2. 2p + q units
3. 2q + p units
4. 2(qp) units

Q. 15 more than a number is 65 can be written as:

1. $p=65+15$
2. $p=65$
3. $p+15=65$
4. $p+65=15$

Q. What is algebra?

Q. If measure of equal sides of an isosceles triangle is 'x' cm and the other side is 8 cm, then the perimeter of the triangle is cm.

1. 2x + 8
2. 8x + 2
3. 2 + x + 8

Q. If the side of a square is x cm long, then find its perimeter.

1. x cm
2. 2x cm
3. 3x cm
4. 4x cm

Q. Express as equation ;-
126 when divided by a number gives 42.

1. $\frac{126}{x}=42$
2. $\frac{126}{x}=42x$
3. $\frac{126}{42}=x$
4. $126\times 42=x$

Q. Raju's age is $5$ more than twice of Ram's age. If Ram's age is represented by $x$, then the expression which represents Raju's age is _________$.$
[1 Mark]

A. $2x$
B. $2x+5$
C. $5x+2$
D. $2x-5$

Q.

$x$is multiplied by $3$ and $y$ is subtracted from the result:_______________. $[3x-y/2y-x]$

Q. What is algebra?

Q. Fill in the blank.
$(-4)+$______$=-12$.

Q.

Two sides of a triangle are 12 cm and 14 cm. The perimeter of the triangle is 36 cm. What is its third side?

Q. If the side of a square is x cm long, then find its perimeter.

1. x cm
2. 2x cm
3. 3x cm
4. 4x cm

Q. Which of the following represents 'a times b increased by 9'?

1. ab + 9
2. a - b + 9
3. a + b + 9
4. a + 9b

Q. If measure of equal sides of an isosceles triangle is 'x' cm and the other side is 8 cm, then the perimeter of the triangle is cm.

1. 2x + 8
2. 8x + 2
3. 2 + x + 8

Q. Match the following with their equivalent values.

1. $\frac{2}{a}+b$
2. $2a+b$
3. $\frac{a}{b}$
4. $ab$

Q. The unknown value $\frac{5}{13}+$ ......... = $\frac{5}{13}$ is

1. $1$
2. $0$
3. $\frac{5}{13}$
4. $\frac{2}{13}$

Q.

solve the equation where i represent iota and IzI is modulus of z which is a complex number.

IzI-z=1+2i

Q.

Find the value of the whole number $x$ in the following:

$x-42353=29876$

Q. If the ordered pairs(x1, y1) and (x2, y2) satisfying the system of equations log10(y)-log10|x| = log100(4) and log100| x + y |=1/2 find value of x1x2y1y2

Q.

The length of each side of an equilateral triangle is . Its altitude is
(a) cm
(b) 3 cm
(c) cm
(d) cm

Q. Burst the bubbles containing algebraic expressions (where, x, y and v are variables)

1. 13-0
2. 2x+5
3. x-6
4. 2+6
5. 2y
6. y-6 = 0
7. y-10
8. v-13
9. 7-4
10. v - 6 = 0

Q. Match the following with their equivalent expressions.

1. $\frac{x}{2y}$
2. 3x
3. x + 2y
4. y - 3

Q. x + 6 is the same as 6x.

1. False
2. True