型号 | 92号汽油 | 95号汽油 | 98号汽油 | 0号柴油 |
油价(元/升) | 8.95 | 9.66 | 10.36 | 8.79 |
(1)小明爸爸的加50升的95号汽油比加92号汽油贵多少元?
(2)小红爸爸带了500元,想给自己的汽车加满55升98号汽油,他带的钱够吗?如果够,应找回多少钱?如果不够,还差多少钱?
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