Wednesday

October 22, 2014

October 22, 2014

Posted by **chemiii** on Tuesday, October 3, 2006 at 10:34pm.

...what is t when d =210?

please help im desperate here...iv been studying all day help me my brain hurts!!!!!!!!!!!

Now settle down and try to understand what is being asked here. You're given the formula

d=r*t where d is the distance traveled, r is the speed and t is the time taken. In this case r=70 so the formula is

d=70*t

If you want to know what d is when t=2.5, substitute 2.5 for t to get

d=70mph*2.5hr

Can you solve for d?

For the second one you're given

210mi=70mph*t

Can you solve for t?

- math -
**Noah**, Sunday, October 14, 2012 at 5:04pmd = 175 mi

t = 3 hrs

**Answer this Question**

**Related Questions**

math - The equation d =70t represents the distance in miles covered after ...

Math - You walk at 4 miles per hour for 1/2 hour, and then jog at 6 miles per ...

math - substitute to find the value of the expression. A train must cover a ...

math - Hannah took a trip yo visit her cousin. She drove 120 miles to reach her ...

math - two airplanes left the same airport traveling in opposite direction. if ...

Math - john's columm covered the first 12 miles in 4 hours. he then increased ...

Algebra 2 - Find an equation for the linear model of the situation below and use...

math - your family is driving to houston,texas.A sign indicates that you are 700...

math a little less - celia writes the equation d=8t to represent the distance in...

Help!...Math... - Two cars leave town going opposite directions. One car is ...