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Evaluate the expression 20 - 5a + ab when a=4 and b=10.

Mathematics

ScanSolve AI Answer

Answer

40\textbf{40}

Step-by-step solution

3 steps

  1. Substitute a=4a=4 and b=10b=10 into the expression.

    20−5(4)+(4)(10)20 - 5(4) + (4)(10)

  2. Perform the multiplications.

    20−20+4020 - 20 + 40

  3. Perform the additions and subtractions from left to right.

    (20−20)+40=0+40(20 - 20) + 40 = 0 + 40 0+40=400 + 40 = 40

    The value of the expression is:

    40\textbf{40}
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