Question

gies please help me .​

Answer 1

Answer:

$distance \: = {speed} \: \times time$

(1)

Therefore , distance covered by Carlos =

$6 \frac{km}{h} \times 3h \: = 18km$

(2)

$quater \: of \: an \: hour = \frac{1}{4}hr$

Therefore , distance covered by jet ski =

$120 \: \frac{km}{h} \times \frac{1}{4} hr \: = 30 \: km$

(3)

at the speed of 90 km/hr , it will take certain time to travel 30 km =

$time = \frac{distance}{speed} = \frac{30 km}{90 \frac{km}{h} }= \frac{1}{3} hr= \frac{60min}{30} = 20 min$

Answer 2

1.) 9km

2.) 29.97m

3.) 27 hr