Posted by **ashley** on Wednesday, April 21, 2010 at 9:29pm.

write and solve an inequality. on a trip from virginia to florida, the sampson family wants to travel at least 420 miles in 8 hours. what must be their average rate of speed?

- algebra -
**Reiny**, Wednesday, April 21, 2010 at 9:42pm
rate = distance / time

= 420/8 = 52.5 mph

so any speed greater than that will give a distance greater than 420

so

rate ≥ 420/8 would do it.

- algebra -
**Mrs P**, Wednesday, April 21, 2010 at 9:47pm
8x ≥ 420

8x/8 ≥ 420/8

x ≥ 52.5

They would need to travel greater than or equal to 52.5 mpg to meet their expectations.

## Answer this Question

## Related Questions

- Algebra 1 - Write and solve an inequality. SOLVING MULTI- STEP INEQUALITIES On a...
- Geometry - On a trip from Virginia to Florida the Smith family wants to travel ...
- Pre-Algebra - On a trip from Lousiana to Flordia, your family wants to travel at...
- Math - A family wants to travel at least 420 miles in 8 hours of driving. What ...
- pre-algebra - your family is driving to houston,texas.A sign indicates that you ...
- Algebra - Norman traveled 261 miles on a trip to bates. The trip took 4 1/2 ...
- math - your family is driving to houston,texas.A sign indicates that you are 700...
- math - A 200-miles trip by an electric automobile must be completed in 4 hours. ...
- Math - Antoine paid $7.47 for 3 pounds of grapes. Write the cost of the grapes ...
- College Algebra - A family drove 1080 miles to their vacation lodge. Because of ...

More Related Questions