14. At the library, Herb spent 1/6 hour looking for a book, 1/4 hour reading, and 1/2 hour doing research on the computer. How m
any
hours did Herb spend at the library?
hours did Herb spend at the library?
1 answer:
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Answer:
There are <u>12 marbles</u> in Daniel's set.
Step-by-step explanation:
Given:
Daniel has a set off green,blue and red.
The red marbles make up exactly half of the set.
The set has 2 blue marbles.
The green marbles in set are as twice of the blue marbles in set.
Now, to find the number of marbles in Daniel's set.
Let the number of marbles in Daniel set be
So, the red marbles =
Blue marbles = 2.
And the green marbles =
According to question:
<em>Multiplying both sides by 2 we get:</em>
<em /><em />
<em>Subtracting both sides by </em><em> we get:</em>
Therefore, there are 12 marbles in Daniel's set.