The equation d =70t represents the distance in miles covered after traveling at 70 miles per hour for t hours.....what is d when t = 2.5?

...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?

d = 175 mi

t = 3 hrs

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To solve for d when t = 2.5, substitute 2.5 for t in the equation d = 70t:

d = 70 * 2.5

To solve this, multiply 70 by 2.5:

d = 175

So, when t = 2.5, d is equal to 175 miles.

To solve for t when d = 210, substitute 210 for d in the equation d = 70t:

210 = 70t

Now, to solve for t, divide both sides of the equation by 70:

210 / 70 = t

3 = t

So, when d = 210, t is equal to 3 hours.

Remember that the equation d = 70t represents the relationship between distance, speed, and time. By substituting the given values into the equation, you can solve for the unknown variable.