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Two planes, which are 2780 miles apart, fly toward each other. Their speeds differ by 45 mph. If they pass each other in 4 hours, what is the speed of each?

Denise has 4 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the race and walking back the same distance to cool down. If she runs at...

X the average distance from the earth to the moon is 3.844*10^8 meters. if the length of an average pencil is1.8^-1 meters approximately how many pencils would need to be connected together to reach...

x/(x-1) + (2x+3)/(x2-1)   Can someone help me I do not know how to add with different denominators. I would appreciate step by step guidance

Mrs. Kemper told her English classes each week students tend to forget 1/6 of the vocabulary words they learned the previous week supposed to student loans 60 words the number words remember can be...

Supposed to certain cell reproduces itself in 4 hours if a lab research word begins with 50 cent how many cells will there be after one day 2 days and 3 days. Y=50 (2×)

A multiple-choice exam consists of 20 problems, each with five answer choices, exactly one of which is correct. What is the probability that you get at least half of the problems correct if you randomly...

1. Choose two animals with different speeds. You can choose from the chart that starts at the bottom of this page or do research to choose your own. 2. Design a fair race in which the two...

A library expansion begun in 2002 and was expected to costb\$127 million . By 2006 library officials estimate the cost would be \$25milliom over budget. By what percent did the actual cost exceed the...

find the difference, d, in the number of organic stores between california and the state of washington answer washington has 41-50 stores and california has 81-90