Mrs. cho drives 45 miles in 1 hour. if her speed stays constant, how many hours will it take for her to drive 405 miles?

The correct answer is 9 hours. 405 divided by 45 is 9.

It is 9 hours.  405 divided by 45 equals because in each 45 miles equals one hour, you have to divide 405 by 45 to give you your answer . Since 45= 1 hour  405= 9 hours 

One shot. if 60% of 10 is 6, then what is 70%? we know it would be seven (since 60% is mathematically 60/100, or 6/10, then 70% is 70/100, or 7/10) but we can check anyway using ratios: 6 : 60% = x : 70%*inverse multiplicationx * 60% = 6 * 70%*divide both sides by 60%x = (6 * 70%) / 60%x = 7and since he has made 6 shots already, he would need just one more to get 7 shots or 70%. if the explanation is too confusing, comment and i will try to