All New SAT Math - Calculator Resources
Example Questions
Example Question #91 : Ratio And Proportion
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?
Possible Answers:
Correct answer:
Explanation:
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 #92 : Ratio And Proportion
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?
Possible Answers:
Correct answer:
Explanation:
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.All New SAT Math - Calculator Resources
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