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Chapter 1: Q15. (page 18)

Evaluate the expression9.8+2.27鈭�5.

Short Answer

Expert verified

The value of expression is 6.

Step by step solution

01

Step-1 – Order of operations

To evaluate any expression involving more than one operation, follow the below order of operations:

  • First evaluate expressions inside grouping symbols like parentheses ( ) or brackets [ ].
  • Evaluate the exponents.
  • Perform Multiplication and division from left to right.
  • Perform addition and subtraction from left to right.
02

Step-2 – Simplify numerator and denominator

The expression is provided as9.8+2.27鈭�5

To evaluate the expression, add 9.8 with 2.2 in the numerator and subtract 5 from 7 in the denominator as shown

9.8+2.27鈭�5=127鈭�5=122

03

Step-3 – Divide the numbers

To simplify further, divide the resulting numbers to get

9.8+2.27鈭�5=122=6

So, the value of the expression is 6.

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