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

p(x) x^3+x^2-x-1 Find all zeros of p (x)

CAN ANYONE PLEASE HELP WITH MATH? The rectangle has an area of 4(x+3) square units. A- If the dimensions of the rectangle are doubled, what is the area of the n

The length of a rectangle is 4 times its width and the perimeter is 150 feet. What is the width of the rectangle? A. 75 feet B. 30 feet C. 15 feet D. 60 fe

Gina rented shoes, bowled 3 games, and bought 1 order of nachos. she used a coupon for 1/2 off the price of her bowling games. What was Ginas total cost before

How did the mountains in Greece contribute to the rise of city-states?

Companies raise funds to expand their business by

PLEASE HELP I GIVE THANKS

a tabletop in the shape a trapezoid has an area of 6550 square centimeters its longer base measures 115 centimeters and the shorter base is 85 centimeters what

Can someone answer my question plz!!!! It's in the picture and show your work!!!!!

Jennie had $300. Then she spent $15 on a new shirt. What percent of the money does Jennie have left