Pablo E.
asked 09/19/22
A train travels 160 km in the same time that a plane covers 560 km. If the speed of the plane is 30 km per hr less than 4 times the speed of the train, find both speeds.
Raymond B.
answered 09/19/22
Math, microeconomics or criminal justice
d=rt
t=d/r
P=4T-30
160/T =560/(4T-30)
560T = 640T - 4800
80T = 4800
T = 60 kph = Train speed
P= 240-30 = 210 kph= Plane speed
t= 2 2/3 = 2 hours and 40 minutes
Still looking for help? Get the right answer, fast.
OR
Find an Online Tutor Now
Choose an expert and meet online.
No packages or subscriptions, pay only for the time you need.
¢
€
£
¥
‰
µ
·
•
§
¶
ß
‹
›
«
»
<
>
≤
≥
–
—
¯
‾
¤
¦
¨
¡
¿
ˆ
˜
°
−
±
÷
⁄
×
ƒ
∫
∑
∞
√
∼
≅
≈
≠
≡
∈
∉
∋
∏
∧
∨
¬
∩
∪
∂
∀
∃
∅
∇
∗
∝
∠
´
¸
ª
º
†
‡
À
Á
Â
Ã
Ä
Å
Æ
Ç
È
É
Ê
Ë
Ì
Í
Î
Ï
Ð
Ñ
Ò
Ó
Ô
Õ
Ö
Ø
Œ
Š
Ù
Ú
Û
Ü
Ý
Ÿ
Þ
à
á
â
ã
ä
å
æ
ç
è
é
ê
ë
ì
í
î
ï
ð
ñ
ò
ó
ô
õ
ö
ø
œ
š
ù
ú
û
ü
ý
þ
ÿ
Α
Β
Γ
Δ
Ε
Ζ
Η
Θ
Ι
Κ
Λ
Μ
Ν
Ξ
Ο
Π
Ρ
Σ
Τ
Υ
Φ
Χ
Ψ
Ω
α
β
γ
δ
ε
ζ
η
θ
ι
κ
λ
μ
ν
ξ
ο
π
ρ
ς
σ
τ
υ
φ
χ
ψ
ω
ℵ
ϖ
ℜ
ϒ
℘
ℑ
←
↑
→
↓
↔
↵
⇐
⇑
⇒
⇓
⇔
∴
⊂
⊃
⊄
⊆
⊇
⊕
⊗
⊥
⋅
⌈
⌉
⌊
⌋
〈
〉
◊