help please? algebra?

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a car drove 72 miles per hour for 2 hours, then at 69 miles per hour for 5 hours. how many miles did the car go in all ?

2007-03-15 13:36:21 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics

car went 72x2 + 69x5 miles

(Distance = Speed x Time)

2007-03-15 13:42:23 · answer #1 · answered by Orinoco 7 · 0⤊ 0⤋

Total Distance = 72miles x 2 + 69miles x 5

Formula: Distance = Speed x Time

There you go (:

2007-03-15 14:30:07 · answer #2 · answered by Anonymous · 0⤊ 0⤋

= (72 mph) 2hrs + (69mph) 5hrs
= 144mi + 345mi
= 489 miles

2007-03-15 13:45:14 · answer #3 · answered by Anonymous · 0⤊ 0⤋