回答: #F = 1.5H# 说明: #“让f代表罚球并且练习h小时”# #“声明是”fproph# #“转换为等式乘以k常数”# #“变异”# #F = KH# #“找到k使用给定的条件”# #h = 6“和”f = 9# #F = khrArrk = F / H = 9/6 = 3/2 = 1.5# #“方程式”是颜色(红色)(条形(ul(|颜色(白色)(2/2)颜色(黑色)(f = 1.5h)颜色(白色)(2/2)|)))#