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Which Inequality is true?

A) 12/π > 4
B) π + 3 < 6
C) 6 - π > 3
D) 8π > 24

User Csilla
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1 Answer

24 votes
24 votes

Answer:

D

Explanation:

We are going to define π = 3 (π is actually ≈ 3.14159...)

Why would I define π = 3? This is because we know that π > 3 and after we evaluate the value, we will check using 3.14159..

From A choice; 12/3 is 4. We know that if denominator keeps increasing, the evaluated value will be decreasing.

That means if 12/3 = 4 then 12/3.14159 would be less than 4.

Thus 12/π > 4 is FALSE.

Choice B;

π+3 < 6 — let π = 3

3+3 < 6

6 < 6

Now 3.14159 +3 would be > 6 because π ≈ 3.14 > 3

Thus, π+3<6 is FALSE.

Choice C;

6-π>3

6-3>3

3>3

Now we know that if we subtract 6 with 3.14, the value would be less than 3.

6-3.14 would be around 2.7 to 2.8

Therefore 6-π>3 is also FALSE.

Choice D;

8π>24

8×3>24

24>24

Now if we let π ≈ 3.14, we know that π > 3 and 8 times 3.14 would be greater than 24.

Therefore, 8π>23 is TRUE.

User Faisal Sayed
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3.0k points