katieoliviabell katieoliviabell

10-12-2019
Mathematics

contestada

The sum of the speed of two trains is 727.7 miles per hour. If the speed of the first train is 8.3 mph faster than that of the second train, find the speed of each.

Respuesta :

adancy22 adancy22

12-12-2019

Answer:2x+7.3=720.7

2x=720.7-7.3

2x=713.4

x=356.7

x+7.3=364

speed of 2nd train=356.7 mph

speed of 1st train=364 mph

Step-by-step explanation:

Answer Link

Otras preguntas

Harry’s shoe store has noticed a significant increase of revenue of $123,000. The manager has also determined that the total expenses equal to $128,000. Will th

Wats the answer?Please answer fast

The value of the 8 in 89.945 is how many times rhe value of the 8 in 763.186

Write the symbol of each neutral element based on its written electron configuration:

what are the properties of elements??

PLEASE HELP WORTH 100 POINTS AND ILL GIVE BRAINLIEST !!!! Determine the density of three pure solids on g/cm3. Choose objects of which you are sure of their ide

help me please i need it a lot

Which of the following selectors will target this paragraph?Paragraph 1 a) p b) #firstP c) p#firstP d) all of the above

why is it important to know whether a number is positive or negative

What is the probability of an outcome greater than 2?