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Example Question #2101 : Psat Mathematics
A carpenter is making a model house and he buys of crown moulding to use as accent pieces. He needs
of the moulding for the house. How many feet of the material does he need to finish the model?
We can solve this problem using ratios. There are in
. We can write this relationship as the following ratio:
We know that the carpenter needs of material to finish the house. We can write this as a ratio using the variable
to substitute the amount of feet.
Now, we can solve for by creating a proportion using our two ratios.
Cross multiply and solve for .
Simplify.
Divide both sides by .
Solve.
Reduce.
The carpenter needs of material.
Example Question #2102 : Psat Mathematics
A carpenter is making a model house and he buys of crown moulding to use as accent pieces. He needs
of the moulding for the house. How many feet of the material does he need to finish the model?
We can solve this problem using ratios. There are in
. We can write this relationship as the following ratio:
We know that the carpenter needs of material to finish the house. We can write this as a ratio using the variable
to substitute the amount of feet.
Now, we can solve for by creating a proportion using our two ratios.
Cross multiply and solve for .
Simplify.
Divide both sides by .
Solve.
The carpenter needs of material.
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