Bob drove 120 km in traffic. On the returning trip, he drove twice as fast. The total time was 4 hours. What was the rate for each direction?

Bob drove 120 km in traffic. On the returning trip, he drove twice as fast. The total time was 4 hours. What was the rate for each direction?

Just need answer and explanation why?

You recently bought and planted some pea shoots. So far they have grown 5 inches in a week. At that rate, how much will they have grown at the end of 30 days?

a canal has a current of 2 mph. find the speed of Vanessa's remote-controlled boat in still water if it would go 11 miles downstream in the same time that it goes 8 miles upstream.

A cheetah can run 20 miles per hour faster than a lion. A cheetah can run seven miles in the same time that a lion can run 5 miles. Find the speed of each animal.

(1/x)=(1/(4-x))

(1/(x+3)) - (x/(x2-9))=-(2/(x-3))

Solve this problem using five steps for problem solving (familiarize, translate, carry out, check, state). You recently bought and planted some pea shoots. So far they have grown 5...

Solve this problem using five steps for problem solving (familiarize, translate, carry out, check, state). A canal has a current of 2 mph. find the speed of Vanessa's remote-controlled...

Solve this problem using five steps for problem solving (familiarize, translate, carry out, check, state). A cheetah can run 20 miles per hour faster than a lion. A cheetah can run...

evaluate the expression for x=1/2 (x2 - 4)/(x2+4)

find the values of x for which this expression is undefined: (x2 - 4) / (x2 + 4)

simplify this expression: (t3 - 9t) / (t(t+3)3) ----------------------------------------------------------------------------------------------- Consider the expression (x2...

find the values of t for which the expression is undefined: (t3 - 9t) / (t(t+3)3)

A person swims 11 miles downriver in the same time they can swim 7 miles upriver. The speed of the current is 4 miles per hour. Find the speed of the person in still water

Ruth and Jerry go for a jog in Texas. Ruth jogs while Jerry roller-blades. Jerry roller blades 3 miles per hour faster than Ruth jogs. When Jerry has roller bladed 5.7 miles, Ruth has jogged 3.3 miles...

when x is divided by 12 the remainder is 7 when x is divided by 11 the remainder is 7 when x is divided by 10 the average is 7 what is the value of x

Rosa can clean a house in 7 hours. When Rosa and Amy work together, they can clean a house in about 4.2 hours. About how long will it take Amy to clean a house if she works by herself?

A barge travels at an average of 7 miles per hour in still water. The barge travels 50 miles up the Mississippi River and 50 miles down the river in a total of 17.5 hours. What is the average speed...

The equation is: 2/x - 1/x2 = -3 We are supposed to find the LCM, but of course, we weren't taught how (this teacher is frustrating). Could...

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