18÷3(5-4+1) =?? 3 or 12 how ?!

Mathematics

2 answers:

larisa86 [58]3 years ago

7 0

Answer: answer is 3

Step-by-step explanation:

18 ÷ 3(5-4+1)

Step 1: apply BODMAS

Open bracket first, then add before subtracting

= 18÷ 3 × 1+1

18÷3 x 2

18 ÷ 6

sergejj [24]3 years ago

3 0

Answer:

Step-by-step explanation:

Parenthesis first:

5-4+1

5-4=1+1=2

18÷3×2

Divide:

18÷3×2

Multiply:

6×2=12

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What’s the surface area

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Answer: 38 in.^{2}

Step-by-step explanation:

1/ Find the area of the triangular sides. (1/2 x 2 x 6 = $6 in.^{2}$ for each triangular side)

2/ Find the area of each of the rectangular sides. In this case, the bottom (base) side is 2x6 = $12 in^{2}$ . The rectangular side on the left is 2x3 = $6 in.^{2}$ , and the rectangular side on the right is 4x2 = $8 in.^{2}$ .

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