Question

[88%x+96%（600-x）]÷600≥0.9解这个不等式

Answer 1

[88%x+96%（600-x）]÷600≥0.9

88%x+96%（600-x）≥0.9*600

88%x+96%*600-96%*x≥0.9*600

-8%X≥0.9*600-96%*600

-8%X≥-6%*600

X