Tuesday
December 10, 2013

# Posts by stephanie

Total # Posts: 946

Math
what is 90 rounded to the greatest place?

Math
Light travels at 3.0x10^8 meters/seconds. A light-year is the distance light travels in one year. Given that there are 3.15x10^7 seconds in one year, how many meters are in a light year?

Math
Solve the equation for x. 30x+10x=40=16x+8

math
Use the associative property of multiplication to analyze the equation. (6X13)x8=zx(13x8) what is the value of z? a. 1 b. 6 c. 8 d. 13

math

math
Which equation demonstrates the commutative property of addition? a. 2x+y=y+2x b. 2x+y=2x+y c. 2x+y=2(x+y) d. 2x+y=y+(2+x)

math
The Great seto Bridge in Japan is 9,368 meters long. A bicyclist riding across the bridge can travel 500 meters in 1 minute. A person walking can travel 100 meters in 1 minute. How many minutes shorter is the bicycle trip than the walk?

English
These answers are my answers, they might not be the correct answers though. Keep in mind...I might be wrong. 1.a 2.c 3.c 4.b 5.c 6.d 7.d 8.b 9.a 10.a 11.b 12.a 13.d 14.d

math
Two trains heading toward each other are 400 miles apart. One train travels 15 miles per hour faster than the other train. If they arrive at the same station in 5 hours, how fast is each train traveling?

Science
Determine the pH of a .10M solution of KA, the potassium salt of HA. For HA, Ka=1.0x10^-5

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