<span>(230 + w) x ( t ) = ( 275 )
(230 - w) x ( t ) = ( 185)
t = 275 / (230 + w)
t = 185 / (230 - w)
275 / (230 + w) = 185 / (230 - w)
275(230 - w) = 185(230 + w)
63250 - 275w = 42550 + 185w
20700 = 460w
w = 45mph
</span>
Answer:
Step-by-step explanation:
0.32142857142
Let be M the set of the real numbers less thant 69
so we write it as follow M = { x∈R / x ∠ 69}
1 meter is 100 centimeter, as "centi" means 1 hundredth:
So 100 centimeter means 100-"1 hundredth" meters, which is 1 meter.
In short, since 1 meter is 100 centimeters, 8 meters are 800 centimeters.
Answer: 800 cm
