Question

What is the value of the expression? 40÷[20−4·(7−4)] Enter your answer in the box.

Answer 1

Start with what is inside the brackets (the innermost ones () )

7 - 4 = 3 Substitute that into the original equation.

40 divide [20 - 4(3)] Now deal with the 4*3

40 divide [20 - 12] Now calculate the square brackets.

40 divide (8)

The answer should be 5 <<<Answer

Answer 2

Hey there!

`(40)/(20-4(7-4)) \\ \\ (7-4) = 3 \\ \\ (40)/(20-4(3))\\ \\ 4(3) = 12 \\ \\ (40)/(20 - 12) \\ \\ 20 -12 = 8 \\ \\ (40)/(8) = 5 \\ \\ Answer: 5 \\ \\ \\ \\ Remember: PEMDAS \\ \\ Parentheses \\ Exponents \\ Multiplication \\ Division \\ Addition \\ Subtraction \\ \\ \\ Or BEMDAS \\ Brackets \\ Exponents \\ Multiplication \\ Division \\ Addition \\ Subtraction`

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