ariellopez2301 ariellopez2301

02-02-2019
Mathematics

contestada

the sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.

Respuesta :

tramserran tramserran

02-02-2019

Answer: 1st train = 364 mph, 2nd train = 356.2

Step-by-step explanation:

Train 1: x + 7.8

Train 2: x

Train 1 + Train 2 = Sum

x + 7.8 + x = 720.2

7.8 + 2x = 720.2

2x = 712.4

x = 356.2

Train 1: x + 7.8

= 356.2 + 7.8

= 364

Answer Link

Otras preguntas

The help america vote act was passed in 2002 to improve _________ elections. answer.com

Which results from an increase in the greenhouse effect? continental shifts wildfires volcanic eruptions global warming

What's the difference between the ranunculus and zea may stem? Thanks for your help!! :)

Birds, like mammals, can regulate their body temperatures within close limits. therefore birds and mammals are called

How to do elimination in algebra??

Presenting your findings best fits which step of the statistical process?

how many degrees is in a circle

find the perimeter use 3.14

Applicants in a job interview are asked to participate in a friendly debate to evaluate their reasoning skills. one of the interviewees, lara, consistently igno

hey they are making me write a question