Answer:
1.5 km/h
Step-by-step explanation:
brainly would be epic :)
% times amount of each part = % times amount of mix
x = amount of 10%
100 = amount of 100%
x + 100 = amount of 40% mix
10x + 100(100) = 40(x + 100)
10x + 10,000 = 40x + 4,000
-10x - 4000.....-10x - 4000
------------------------------------- 6000 = 30x
so x = 6000 ÷ 30 = 200 mL
Answer:
(-3,4) or x = - 3, y = 4
Step-by-step explanation:
