(1)求甲、乙两种型号的马奶酒的单价各是每杯多少元?
(2)李老师购买这两种型号的马奶酒共个,且投入的经费不超过元,那么最多可购买多少个甲型号马奶酒?
(3)根据“节俭粮食光荣,浪费粮食可耻”要求,为了更省钱,送给后台的打扫人员,发现李老师买的马奶酒不够,又派出杨老师去购买,且两种型号的马奶酒都要买,她一共花了元,你知道她甲、乙两种型号的马奶酒各购买多少个吗?
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2