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
Thanks

9th grade MATH  sydney, Wednesday, September 29, 2010 at 8:28pm
14+2y=78
14 14
__________
2y=64
_ _
2 2
y=32

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
=215miles/4.5hrs
Approx.=47.8 or 48mph
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