Question

Paul leaves his house at 8:10 am on his motorcycle and reaches his
office 40 km away at 9:50 am. At what speed was Paul riding his
motorcycle?

Answer 1

Answer:

6.67 m/sec or 24 km/hr

Step-by-step explanation:

Total time taken = 1 hr 40 min = 6000 secs.

Distance = 40 km = 400000m

Speed = 400000/6000 = 6.67m/sec  - approx 24 km/hr

Answer 2

Answer:

3x²+48x+117=0

I am unable to answer there so I am answering here

take 3 common

3(x²+16x+39)=0

x²+16x+39=0/3

x²+13x+3x+39=0

x(x+13)+3(x+13)=0

(x+3)(x+13)=0

if x+3=0

x=-3

if x+13=0

x=-13

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