Question

Evaluate the expression

Answer 1

Answer:

85

Step-by-step explanation:

To evaluate the expression, follow the rule of PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition and Subtraction.

$20 \div (5-3) +5^2(3)$

Solve inside the parentheses first by subtracting 3 from 5.

5-3 = 2

$20 \div (2) +5^2(3)$

Next, evaluate the exponent.

5² = 5*5= 25

$20 \div 2+25(3)$

Next, multiply 25 and 3.

25 *3 =75

$20 \div 2+75$

Then, divide 20 by 2.

20/2=10

$10+75$

Finally, add 10 and 75.

$85$

The expression $20 \div (5-3) +5^2(3)$ evaluated is 85.

Answer 2

Answer: 85

Step-by-step explanation:

To solve this problem, we want to use the order of operations, or PEMDAS.

Parenthesis

Exponent

Multiply

Divide

Add

Subtract

To be more specific, you evaluate the expression in the order from top to bottom. To clarify, it is multiply OR divide, depending on which comes first, left to right. This also applies to add OR subtract.

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20÷(5-3)+5²(3)                              [solve parenthesis]

20÷(2)+5²(3)                                 [solve exponent]

20÷2+25(3)                                   [solve multiply or divide, left to right]

10+75                                             [solve add or subtract]

85