Answer:
1. TWO RATIOS ARE NOT EQUAL
2. TWO RATIOS ARE EQUAL
3. N = 24
18 : N = 21 : 28
N/18 = 28/21
18 × (N/18) = (28/21) × 18
N = (28/21) × 18
N = 18 × (28/21)
N = 24
Therefore 18 : 24 = 21 : 28
4. N = 48
12 : 16 = N : 64
12/16 = N/64
64 × (12/16) = (N/64) × 64
64 × (12/16) = N
N = 64 × (12/16)
N = 48
Therefore 12 : 16 = 48 : 64
Step-by-step explanation:
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Answers & Comments
Answer:
1. TWO RATIOS ARE NOT EQUAL
2. TWO RATIOS ARE EQUAL
3. N = 24
18 : N = 21 : 28
N/18 = 28/21
18 × (N/18) = (28/21) × 18
N = (28/21) × 18
N = 18 × (28/21)
N = 24
Therefore 18 : 24 = 21 : 28
4. N = 48
12 : 16 = N : 64
12 : 16 = N : 64
12/16 = N/64
64 × (12/16) = (N/64) × 64
64 × (12/16) = N
N = 64 × (12/16)
N = 48
Therefore 12 : 16 = 48 : 64
Step-by-step explanation:
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