Mathematics
Grade6
Easy
Question
If d = 3, e = 5, f = 8 and g = 100, then what is the value of def ?
- 130
- 100
- 140
- 120
Hint:
This is an algebraic expression. An algebraic expression consists of two components: a variable and a constant. A variable is a quantity that doesn’t have any fixed value. It takes value according to the conditions. It is denoted by the alphabet. A constant is a quantity with a fixed value. In this question, value is assigned to the variables. We have to perform the required operations and find the final value.
The correct answer is: 120
.The given expression is def.
There are three variables in the above expression. The variables are: ‘d’, ‘e’ and 'f'. Values assigned to the variables are d = 3, e = 5, and f = 8. We have to substitute these values and find the final value of the expression.
If we see the equation, it is multiplication of the three variables: ‘d’, ‘e’ and 'f'.
We have to first substitute the value and perform the required operations.
To substitute the value, we have to replace d by 3, e by 5 and f by 8. After substituting the value, we will get the following equation:
def = (3)(5)(8)
def = 120
Therefore, the value of equation is 120
So option ‘120’, is the right option.
We have to be careful about the order of operations. We should be careful while substituting values of variables too.
