Answer: z = 247.5
Step-by-step explanation:
4.8/2z+15=0.2/5 To eliminate the denominators, multiply both sides by their reciprocals.
2z(5)(4.8/2z+15)=2z(5)(0.2/5) Denominators "cancel." Distribute 5(4.8 + 15)
24 + 75 = 2z(0.2) Simplify: Add 24+75=99 and Multiply 2z×0.2= 0.4z
99 = 0.4z . Divide both sides by 0.4
99/0.4 = 0.4z/0.4 . 0.4 "cancels" on the right. dividing by a decimal is like multiplying by its reciprocal, 10/4 × 99
247.5 = z
