6th grade math
posted by Chris .
If Jack takes 6 hours to wash 4 cars then at that rate how man cars could be washed in 42 hours?
we got answer of 28 cars but then how do you determine the rate the cars were being washed?
the teacher gave answer of 2/3 cars per hour but we don't understand how she got that.
Respond to this Question
Similar Questions

Algebra 2
"At a school sponsored car wash, the fees charged were: $5 per car, $8 per truck, $10 per van. Twice as many cars were washed as pickup trucks. The amount collected for washing cars and pickup trucks was $360. A total of $410 was collected. … 
Math
The bar graph below shows the numbers of various colors of cars owned by the employees of a certain business. Write five ratios (expressed as fractions in lowest terms) that compare the least popular color to each of the other colors. … 
AP Calculus AB
A traffic engineer monitors the rate at which cars enter a freeway onramp during rush hour. From her data, she estimates that between 4:30 pm and 5:30 pm, the rate R(t) at which cars enter is given by: R(t)=100(10.00012t^2) cars per … 
Ap calc
A traffic engineer monitors the rate at which cars enter a freeway onramp during rush hour. From her data, she estimates that between 4:30pm and 5:30pm the rate R(t) at which cars enter is given by: R(t)= 100(10.00012t^2) car per … 
Math
Samantha and her family are traveling 325 miles to Houston for the holidays. Her dad drives at a rate of 52 milers per hour during the trip. Base on this info, which of the following statenemnts is a reasonable conclusion? 
algebra
trying to solve a point a slope word problem. you are scheduled to start your job at an oil change shop 2 hours after shop opens. two hours after you start, a total of 11 cars have had their oil changed. three hours later, a total … 
math
ANSWER THESE NOW PLEASE !!!!!!! 2.yesterday ,a parking lot had 10 cars parked in it.of the cars parked in the parking lot l,40% were silver,3 were red,and the rest were blue.how many of the cars were blue? 
math
the drama club held a car wash on saturday and sunday. they washed a totl of 60 cars if they waShed 40% of the cars on sunday how many cars did they wash on sunday? 
Math
Two cars leave the same town and travel in opposite directions. At the end of 8 hours, the cars are 896 miles apart. Find the rate of each car if the rate of one car is 4 mi/hr more than the rate of the other. 
Math
Together Paul and Jack earned $72 washing cars. Jack washed twice as many cars as Paul. If Paul washed 3 cars, how much did they charge to wash each car?