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son and dad clean the house in 3 hours. son takes an hour longer working alone. How long it takes him?

together they clean the house in 3 hours.  It takes the son an hour longer working by himself.  How long it takes him to clean alone?

if a rectangles length is 3 more than 7 times the width and the perimeter is 54 what are the dimensions of the rectangle

i don't know how to do this problem

Film Frames are 70 millimeters wide and projected on a screen that is up to 99 feet wide. If a 4 millimeter long ant walked onto the film and was projected, how wide would the ant appear on a 99 foot...

What is the easiest way to figure out how to set up an equation that consists of the is/of..this is hard for me to set up a the problem correctly..Help!

such as : If 1/4 inch on a map represents 8 miles, how many miles are represented by 3 and 3/4 inches on the map?

How many are in the class?

3/4 of the class are girls; 4/5 of those girls have brown hair.    How many are in the class?

A man received 7% interest on a loan of \$800 for 1 year. How much interest did he receive?

A man received 7% interest on a loan of \$800 for 1 year. How much interest did he receive?

Word Problem

A phone company has two different long distance phone plans. Plan A charges a monthly fee of \$8.51 plus \$0.05 per minute. Plan B charges a monthly fee of \$6.15 plus \$0.08 per minute. A) Find a...

Find the unit rate 75 miles miles in 1 1/2

What is the unit rate?

age problem

marleen is 3 years older than Ned and 2 years younger than Carla.  10 years ago Carla's age was equal to the sum of the ages of Ned and Marleen. How old is each now?

Jeremy bought 5 pencils for w dollars. Each pen costs 35cents more than a pencil. Write an algebraic expression for each of the following in terms of w.

i dont know how to do

Seven times the sum of a number and nine is 7

I need help with this I know it's easy but I'm drawing a blank here

boy has 15 puzzles & 27 CDs. He takes 1 Puzzle & 1 CD on trips How many trips can he take with different puzzle and CD pair

I thought it was 15 because he only has 15 puzzles

Terrance's wife noticed that they had traveled 1/4 of an inch on the map. If 1 inch represents 60 miles, how far had they traveled

lalalalalalalalalalalalalalalalalala hahahahahahahahahaha really hard warning :D

if an object falls 16 feet in 1 second, how far will it take an object to fall 64 feet?

the distance s that an object falls is directly proportional to the square of the time t of the fall. if an object falls 16 feet in 1 second, how far will it take an object to fall 64 feet?

aNEWLY COUPLE MADe a down payment og 11,000on a house. They still owe 96%

a newly couple  made a down payment  11,000 on a house they still owe 96% of the selling price. What was the selling price? please do the probl;em out so I can see how its done thank Yo...

What percentage of customers asked for extra Cash back? How to do this problem

at a local Supermarket a survey that out of 5,000 customers paying for their grocieries using a debit card, 3,000 asked for extra cash back. What percent of custmers asked for extra cash back ?

Helen has a flash drive that can hold 5120 megabytes. If she puts on 896-megabytes file and one 1232-megabytes file on it,

Helen has a flash drive that can hold 5120 megabytes. If she puts 896-megabytes file and one 1232-megabytes file on it, how many more megabytes can the flash drive hold?

Help with the question below?

A 20 fl oz bottle of Brand A's orange juice costs \$1.20. Brand B shows it's orange orange juice prices below.   |Price| \$2.00 | \$2.88 | \$4.00 |Fl oz|    25   |  ...

I'm stuck on this problem in the description

Mr. Chen packed watermelons to ship to the store. He packed 96 watermelons into 12 crates. How many watermelons did Mr. Chen pack in per crate? Justify your answer

Can you help me with this problem in my description?

Jane plans a car trip from Newtown to Trent. The distance between the towns is 925 miles. Then 3 days later, she drives back to Newtown. If she only has 7 days for the trip how many miles does she...