Part A: Solve −np − 80 < 60 for n. Show your work. (4 points)Part B: Solve 2a − 5d = 30 for d. Show your work. (6 points)
Accepted Solution
A:
Answer:Part A ⇒ n>-140/p and p≠0 Part B. ⇒ d=-30-2a/5Step-by-step explanation:Part A. -np-80<60First, add by 80 both sides of equation.-np-80+80<60+80Simplify.60+80=140-np<140Then, multiply by -1 both sides of equation.(-np)(-1)>140(-1)Simplify.np>-140Divide by p both sides of equation.np/p>-140/p; p≠0Simplify to find the answer.n>-140/p; p≠0 is the correct answer from part a.___________________________________Part B. 2a-5d=30First add by 2a from both sides of equation.2a-5d+2a=30+2aThen, simplify.-5d=30-2aDivide by -5 from both sides of equation.-5d/-5=30/-5-2a/5Simplify, to find the answer.d=-30-2a/5 is the correct answer from part b.