$\begin{gathered} \text{Let assume one train spe}ed\text{ is x km/h} \\ \text{Second train spe}ed\text{ is }\Rightarrow(x+18)\text{ km/h} \\ \text{They m}eet\text{ in 2 hour,so} \\ 2=\frac{480}{x+x+18} \\ 2x+18=\frac{480}{2} \\ 2x=240-18 \\ x=\frac{222}{2} \\ x=111\text{ km/h (1st train spe}ed) \\ x+18=111+18=129\text{ km/hr (2nd rain sp}eed)\text{ } \end{gathered}$

3 0

2 years ago

5 x 1/7 The question

JulijaS [17]

As a fraction the answer is: 5/7

6 0

3 years ago

Read 2 more answers

With which information can you construct more than one triangle?

pochemuha

Answer:

Step-by-step explanation: The measurements of two angles

The measurements of two angles and the length of the included side

The measurement of all angles

The lengths of two sides and the measurement of the included angle

6 0

4 years ago

How many of the numbers from 10 through 98 have the sum of their digits equal to a perfect​ square?

How many of the numbers from 10 through 98 have the sum of their digits equal to a perfect square?