39. The ratio of new houses to antique houses in a village is 4:5. If there are 12 new houses, how many antique houses are there?
a. 8
b. 12
c. 15
d.

Step-by-step explanation:

☄ The ratio of new houses to antique houses in a village is 4 : 5 . If there are 12 new houses , how many antique houses are there ?

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✏ Let , the number of antique houses in a village be ' x ' .

Then , According to the question :

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Apply cross product property

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So, The number of antique houses in a village is 15.

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y > 1/3x

y < = -x + 4

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45

step-by-step explanation: