10/12/16

A motor boat covers a certain distance downstream in a river in 5 hrs. It covers the same distance upstream in 5 hrs and a ha........
A motor boat covers a certain distance downstream in a river in 5 hrs. It covers the same distance upstream in 5 hrs and a half. The speed of the water is 1.5 km/hr. What is the speed of boat in... more
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10/11/16

If you hold up a test tube that is being “lit up” by white light and your eye tells you it's purple, how is the input white light being changed?
If you hold up a test tube that is being “lit up” by white light and your eye tells you it's purple, how is the input white light being changed?
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10/11/16

WORD PROBLEM
starting at home Michael traveled uphill to the gift store for 24 minutes at just 10 mph. He then traveled back home along the same path downhill at a speed of 30 mph. What is his average speed for... more
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10/11/16

In a pairs skating competition the male skater (82 kg) is initially carrying his partner (68 kg). They are both moving backwards at 2.50 m/s right before he thr
In a pairs skating competition the male skater (82 kg) is initially carrying his partner (68 kg). They are bothmoving backwards at 2.50 m/s right before he throws his partner forward. What is the... more
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10/11/16

A satellite makes one full revolution of the earth in 90 mins. Assume that the orbit is circular and that the satellite is situated 280km above the equator. If
A satellite makes one full revolution of the earth in 90 mins. Assume that the orbit is circular and that the satellite is situated 280km above the equator. If the radius of the earth is at the... more
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10/11/16

The height of a triangle is 2cm less than it's with. The area of the triangle is 24 cm^2. What are the measures of the base and height
pleaae help
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10/11/16

The ionisationenergy and electron affinity of an element are 13.0eV and 3.8eV Its electronegativity??
here are the options  2.8 3.0 3.5 4.0 please do show the steps to solve the problem too...
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10/11/16

Please Help! Im confused
A compound has a molar mass of 28.1 g/mol and an empirical formula of CH2. What is the molecular formula?
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10/11/16

the price of a soda went down by 20%...
The price of a soda went down by 20%. The new, reduced price is $400.  a) Explain why you can use the next percent diagram to calculate the price of the sofa before the education. (Fill in steps... more
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10/10/16

there were 80 gallons of gas in a tank...
There were 80 gallons of gas in a tank. Now there are only 50 gallons left.  a) calculate the decrease in the amount of gas in the tank as a percentage of the original. This percentage is the... more
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10/10/16

When steve woke up. His temperature was 102°F. Two hours later it was 3° lower. What was his temperature then?
I need to solve with an operation and Sentance
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10/10/16

A rock is thrown from the top of a 500 foot cliff. After 1 second the rock is traveling 47 feet per second. After 3 seconds the rock is traveling 111 feet per s
Simplify your answer. Use integers or fractions for any numbers in the expression   
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10/10/16

. If the range is 20,000 feet when the intitial velocity is 800 ft/sec, find the range when the initial velocity is 1,000 ft/sec.
The maximum range of a projectile varies directly as the square of the initial velocity. If the range is 20,000 feet when the intitial velocity is 800 ft/sec, find the range when the initial... more
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10/10/16

Physics homework problems
1) Charges Q1 and Q2 exert repulsive forces of 17 N on each other. What is the repulsive force in Newtons when their separation is decreased so that their final separation is 63 % of their initial... more
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10/10/16

These questions are pertaining to Linear Equations
The pressure P of water on a diver's body is a linear function of a diver's depth, x. At the water's surface, the pressure is 1 atmosphere. At a depth of 100 ft, the pressure is about 3.92... more
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10/10/16

math word problem help
a train travels 180 km in the same time that a plane covers 450 km. If the speed of the plane is 40 km per hour less than 3 times the speed of the train, find both speeds.   Trains Speed? Planes... more
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10/10/16

Math question
a train travels 180km in the same time that a plane covers 450km. If the speed of the plane is 40km per hour less than 3 times the speed of the train, find both speeds?
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10/10/16

Find the distance between -2.7 and 4.5 on a number line. Write your answer as a decimal.
i just want to now the distance between −2.7−2.7 and 4.54.5 on a number line.
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10/10/16

What is a number decreased by three squared to a expression
I am doing my hw and I need help writing the math statements as a mathematical expression 
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10/10/16

there were a total of 3 football games a month, and 9 are played at night.The season is played for 4 months. how many games are played in the season?
 I need an answer to my word math problem, please  
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10/10/16

A baseball player hits a ball towards the outfield. The height (h) of the ball in feet is modeled by h(t)=-16t^2 +22t+3, where the (t) is the time in seconds.
please answer the questions 
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10/10/16

Twice the sum of 3 consecutive integers is 18. What is the quotient of the largest integer and the smallest integer?
  make an outline and a equation
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10/10/16

the sum of a number and six is four less than six times the number. find the number
the sum of a number and six is four less than six times the number. find the number
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10/10/16

twenty two is two less than six times a number.find the number
twenty two is two less than six times a number. find the number
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10/08/16

how many moles of Ag+ are in 3.8 g of AgCl?
the mass of AgCl is 143 
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