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olga2289 [7]
3 years ago
15

2 3/4÷2/5 answer choice A is 1 7/8 B is 3 1/8 C is 4 2/5 D is 6 7/8

Mathematics
1 answer:
natta225 [31]3 years ago
6 0

Answer:

D. 6 7/8

Step-by-step explanation:

First, convert 2 3/4 to an improper fraction.

2 times 4 = 8

8+3=11

11/4 ÷2/5

Then, flip the second fraction and change the sign to multiplication.

11/4 × 5/2

Multiply.

11 × 5 = 55

4 × 2 = 6

55/6

Simplify the fraction.

6 7/8

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Step-by-step explanation:

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Papessa [141]

Answer:

C = 87.92 mm

General Formulas and Concepts:

<u>Symbols</u>

  • π (pi) ≈ 3.14

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
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<u>Step 1: Define</u>

Diameter <em>d</em> = 28 mm

<u>Step 2: Solve</u>

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A company is expanding its building area from 11,000 square feet to 13,750 square feet. What is the percentage increase of the a
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