exam
Maths Puzzle
Numerical Ability
A plane travels 1800 miles against a headwind in 4 hours. The return trip, now with a tailwind, takes an hour less. What is the rate of speed of the wind?
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exam Other Question
please help me solve this problem
use the substitution method to solve the linear system
here is the promblem
Y=x-4
3x-y=-8
what do you do frist
Write and solve an equation to find the value of x.
4.8 , 1.6 , 5.2, x ; mean 3.7