2 years ago

Please help with explanation.

Mathematics

1 answer:

alekssr [168]2 years ago

6 0

Answer:

hope help you stay happy

You might be interested in

Find the solutions to the equation below check all that apply 4x2 -8x +3 =0

notka56 [123]

Answer:

Hello :

4x² - 8x +3 = 0

4 ( x² - 2x +3/4 ) = 0

4 ( (x² -2x +1) -1 + 3/4) = 0

4 ((x-1)² - 1/4 ) =0

(x-1)² - 1/4 = 0

(x-1)² - ( 1/2 )²=0

( x - 1 -1/2 ) ( x - 1 +1/2 ) = 0

( x - 3/2) ( x - 1/2) = 0

x - 3/2 = 0 or x - 1/2 = 0

two solutions : 3/2 ; 1/2

4 0

2 years ago

Two trains travel a 160 km track each day. The express travels 10 km h^-1 faster and take 30 minutes less time than the normal t

aniked [119]

Let s = the speed of the slower train in km/hrs+10 = the speed of the faster train in km/hrLet t = time in hrs for the slower train to go 160 kmt-5 = time in hrs for faster train to go 160 km---------------Slower train:(1)
160=s.t

Faster train:(2) 160=(s+10) .(t-.5)From (1)(1) t=160/s
use the relations given in following screenshot and then use quadratic equation.