For a particular 5 hours journey, Alex travelled at an average speed of (2x + 5) km/h for the first 2 hours. He then travelled at an average speed of (3x - 5) km/h for the last 3
hours to complete his journey.

(a)
Write down an expression, in terms of x, to represent the distance travelled by
Alex in the first 2 hours of his journey

(b)
Write down another expression, in terms of x, to represent the distance
travelled by Alex in the last 3 hours of his journey.

(c) Given that Alex travelled at an average speed of 90 km/h over the entire 5
hours journey, form an equation in terms of x and hence, solve for x.
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1. 3

2. 4

3. 1

hope this ! have a great day.

-wfz

answer: sorry i can't you.

step-by-step explanation:

at first, in 1635, the evening meetings had been just for women . .

what relationship between ideas is shown in the text above?

question 1 options:

location of events

similarity of events

timing of events

examples of an idea

step-by-step explanation:

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: