04-02-2018
Mathematics

contestada

The sum of the speeds of two trains is 727.4 miles per hour. If the speed of the first train is 8.6 mph faster than the second train, find the speeds of each.

Respuesta :

04-02-2018

X+ y=727.4
8.6+x=y
X+8.6+x=727.4
2x=727.4-8.6
X=718.8/2=359.4
Y=359.4+8.6=368

Verify 359.4+368=727.4 ✔️

Train 1: 368mph
Train2: 359.4mph

Answer Link

Otras preguntas

solve this system of equations using substitution, show your work (ANSWER QUICK PLEASE)

“I looked down the future today" is an example of

the surface area? A - 216 B - 336 C - 438

Find the values of x for which the denominator is equal to zero for 5x+6/x^2+6x+9 . none x = −3 x = 3 x = −3, x = 3

How do trade agreements of international organizations affect trade? by incentivizing the development of trade policies by eliminating tariffs and taxes on impo

please help I am confused

The most common human health response to air pollution is:.

Find the values of x for which the denominator is equal to zero for 2x^2+5/x^2-2x . x = 0, x = 2 x = 1, x = 2 none x = 2

Is my answer correct?

how to find the hcf and the lcm of numbers using prime factorization.lcm 30 and 12.hcm 12 and 20