TL;DR: PARCC (the Partnership for Assessment of Readiness for College and Careers) has been retired in most states and replaced by state-specific tests, but the legacy item bank is still useful Common Core-aligned practice. For 7th grade math, the content covers proportional relationships, rational-number operations, two-step equations and inequalities, geometry (circles and prisms), and probability. […]
20- The answer is 20.Five years ago, Amy was three times as old as Mike. Mike is 10 years now. Therefore, 5 years ago Mike was 5 years.Five years ago, Amy was: \(A=3×5=15\)Now Amy is 20 years old: \(15 + 5 = 20\) 21- Choice D is correct\(\begin{cases}\frac{-x}{2}+\frac{y}{4}=1\\\frac{-5y}{6}+2x=4\end{cases}\)Multiply the top equation by 4. Then,\(\begin{cases}-2x+y=4\\\frac{-5y}{6}+2x=4\end{cases}\)→ Add […]
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