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Chapter 1: Q23. (page 18)

Evaluate the expression whenx=3,鈥�y=4,鈥塧苍诲z=5

localid="1648626056577" x+24.4y

Short Answer

Expert verified

The value of expression is9.1.

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 – Substitute the values

To evaluate the expression x+24.4y, substitute 3 for x and 4 for y, and simplify further using the order of operations as shown below,

x+24.4y=3+24.44=3+6.1

03

Step-3 – Add the numbers

To simplify further, add the resulting numbers to get

x+24.4y=3+24.44=3+6.1=9.1

So, the value of the expression is 9.1.

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Most popular questions from this chapter

Evaluate the expression when x=4andy=2

localid="1648624667777" 0.5[y鈭�(x鈭�2)]

Which of these numbers is not an integer: -31,74,22.5,-7,or19?

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Write the product using an exponent.

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Multiple Choice Evaluate the expression x-ywhenx=12.8andy=4.

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