Mathematics 17 Online
OpenStudy (anonymous):

The Mid Atlantic Ridge has a half-spreading rate of about 25 mm/year. How long would it take for rock at the boundary of the plates (new ro

OpenStudy (anonymous):

The Mid Atlantic Ridge has a half-spreading rate of about 25 mm/year. How long would it take for rock at the boundary of the plates (new rock just formed at the center of the ridge) to be 1 km apart, if the only factor was plate spreading

OpenStudy (anonymous):

OpenStudy (anonymous):

this is hard <:(

OpenStudy (anonymous):

anyone??

OpenStudy (anonymous):

Well, since the metric system converts very nicely by simply moving a decimal point, let's convert 1mm into Km.... 1mm is .001m. 1 Km is 1000m. So, 25mm is equal to .000025Km. In the metric system, it's almost always easiest to convert from a lower unit of measurement to the standard meter, then up to the larger unit. Now we can divide the distance we need, 1Km, by the amount of spreading per year, .000025Km/year. If you keep units in mind when you perform calculations, you can cancel them out like like terms... So, \[1Km \div .000025Km/Year= 40,000 years\]

Latest Questions
Breathless: am so bored- need someone to talk to ;p
26 minutes ago 2 Replies 0 Medals
idfkaa: Pmo with a good movie or show
3 hours ago 0 Replies 0 Medals
KarmaXD: what is Imperialism in two sentences?
5 hours ago 1 Reply 0 Medals
GoatyGoat: Toast me
9 hours ago 1 Reply 0 Medals
GoatyGoat: iiii kkfdj its me Aiko hahaah
9 hours ago 3 Replies 1 Medal
myhomy11: who wants to video chat
9 hours ago 0 Replies 0 Medals
Bones: This is my oc I made him today lmk what y'all think
24 minutes ago 11 Replies 2 Medals
NaiNoah: It's my birthday ud83dudc7dud83dudc7d
24 minutes ago 19 Replies 2 Medals
CecePitbull: does anyone have a bypass?
23 minutes ago 14 Replies 2 Medals