1. Is 2/12 = 5/28 a true proportion?
2 answers:
Answer:
Step-by-step explanation:
<h3>Step 1</h3>
- 2/12 = 5/28
- 2*28 = 12*5
- 56 = 60
False equation
<h3>Step 2</h3>
- No, because the cross products are not equal.
- The proportion is not true, because 2/12 and 5/28 are not equivalent ratios.
<h3>
Solution (1):</h3>
<u>We know that:</u>
- Given proportion: 2:12 = 5:28
Step-by step calculations:
<u>Simplify the LHS:</u>
Remember:<em> (a:b = c:d) = (a x d = b x c)</em>
<u>Use cross multiplication:</u>
- => 1:6 = 5:28
- => 28 = 30 (False)
<h3>
Solution (2):</h3>
- No, because the cross products are not equivalent.
- The proportion is not true, because 2/12 and 5/28 are not equivalent ratios.
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Answer:
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Step-by-step explanation:
all that is done is the parenthesis were moved
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Answer:
na na na na na I don't know