Posted by Keila on Tuesday, September 28, 2010 at 6:42pm.
The sum of 14 and twice a number y is equal to 78 ?
- 9th grade MATH - Alex, Tuesday, September 28, 2010 at 6:59pm
14 + 2y = 78
78 - 14 = 64
2y = 64
64 / 2 = 32
y = 32
- 9th grade MATH - Keila, Tuesday, September 28, 2010 at 7:50pm
- 9th grade MATH - sydney, Wednesday, September 29, 2010 at 8:28pm
- 9th grade MATH - Anonymous, Thursday, October 14, 2010 at 6:53pm
a sales person drove 215 miles frpm new york to washington DC in 4.5 hours what is her average speed?
- 9th grade MATH - Navdeep, Sunday, October 31, 2010 at 7:31pm
Dfrom point a to point b=215miles
VELOCITYaverage=change in distance/change in time
Approx.=47.8 or 48mph
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