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In 7th grade the subject of Math is 170 hours. The total time is divided between Algebra and Geometry in the ratio 3:2. How many hours are there for Geometry?

User DaveAlden
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There are 68 hours of Geometry and there are 102 hours for Algebra.
User Haiku Oezu
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Answer:

There are 68 hours for geometry.

Explanation:

In 7th grade the subject of Math is 170 hours.

The total time is divided between Algebra and Geometry in the ratio 3:2.

Let the number of hours for geometry be = x

Then there are 170 - x hours of Algebra.

Relation forms:


(3)/(2) =(170-x)/(x)

Now solving for x;


2(170-x)=3x


=> 340-2x=3x


=> 340=3x+2x


=> 340=5x

Dividing both sides by 5,

x = 68


170-68=102 for algebra

Hence, there are 68 hours for geometry and 102 hours for algebra.

User Farwayer
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