11. Ari leaves the local community centre on
his bike. He travels north. At the same
time, Lisa leaves the community centre
by car. She travels south. After 30 min, Ari and Lisa are 35 km apart. Suppose
x represents Ari's speed and (2x +10) represents Lisa’s speed, both in kilometres per hour. Find the speeds at which Ari and Lisa travel.

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

the answer

b. they are parallel and will never intersect.

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies

step-by-step explanation: