Using the order of operations, what should be done first when evaluating this expression? -1/2 ÷ 2 (9 + 3) - 4 - 3/4 (8)

2 answers:

8 0

PEMDAS: Parentheses, Exponents, Multiplication/Division or Division/Multiplication from left to right, Addition/Subtraction.
First, we need to get rid of the parentheses by adding 9+3.
Correct answer is: add 9+3

Katen [24]3 years ago

4 0

Answer:

multiply -3/4 (8)

Step-by-step explanation:

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Andrea has some money. Her brother gives her 7 coins worth 23 cents and now she has 73 cents. If she started with 5 coins, what

Nat2105 [25]

Andrea had 5 coins worth 50 cents ! And , thereafter her brother gave her 7 coins worth 23 cents .

<u>Step-by-step explanation:</u>

Here we have , Andrea has some money. Her brother gives her 7 coins worth 23 cents and now she has 73 cents. If she started with 5 coins, We need to find what coins did Andrea's brother give her and what coins did Andrea start with. Let's find out:

Andrea has some money , and her brother gives her 7 coins ! worth 23 cents . So , 1 coin worth is :

⇒ $\frac{23}{7}$