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Fabrizio creates a scavenger hunt for his friend Milo. He hands Milo four envelopes, each with some writing on the outside, as shown below. Envelope 1: 4 × – 4 – 4 + 4 Envelope 2: 1 + 2 – 3 1 – 2 + 3 Envelope 3: – 10 5 × 0 × – 2 Envelope 4: 7 – 6 11 – 8 – 3 He tells Milo that the correct clue to start the hunt is inside the envelope with a rational number written on it. Which envelope has the correct starting clue? wide, and the pockets are separated by 1 4 inches with a 1 4-inch border around the outside. One row of pockets holds 4 calculators, as shown below. image What is the total number of inches across each row?

User Lavell
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1 Answer

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An envelope that has the correct starting clue include the following: B. Envelope 2.

In Mathematics and Geometry, a rational number is a type of number which comprises fractions, integers, terminating or repeating decimals such as the 0, 2/3, 0.12345678901234567890, etc.

Generally speaking, a rational number is a type of number that is represented as p/q.

where:

p and q are integers

q ≠ 0.

Based on the information provided about the clue on each envelopes, we have the following;

Envelope 1 =
(4 * -4)/(-4+4)

Envelope 1 = -16/0

Envelope 1 = undefined (Not a rational number).

Envelope 2 =
(1+2-3)/(1-2+3)

Envelope 2 = 0/-2

Envelope 2 = 0 (A rational number).

Envelope 3 =
(-10)/(5 * 0 * -2)

Envelope 3 = undefined (Not a rational number).

Envelope 4 =
(7-6)/(11-8-3)

Envelope 4 = undefined (Not a rational number).

Fabrizio creates a scavenger hunt for his friend Milo. He hands Milo four envelopes, each with some writing on the outside, as shown below.

Envelope 1:
(4 * -4)/(-4+4)

Envelope 2:
(1+2-3)/(1-2+3)

Envelope 3:
(-10)/(5 * 0 * -2)

Envelope 4:
(7-6)/(11-8-3)

He tells Milo that the correct clue to start the hunt is inside the envelope with a rational number written on it. Which envelope has the correct starting clue?

A. Envelope 1

B. Envelope 2

C. Envelope 3

D. Envelope 4

User John Henckel
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9.0k points