9. Alicia and Kyle each are trying to find the solution to the system below. Alicia started by multiplying the top equation by -2.
Kyle started by manipulating the top equation to isolate y.
a. Why did Alicia multiply by-2?

b. Why did Kyle isolate y?

c. Explain why they are both
correct.

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

The function models the number of accidents

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.