Robert drove for 5 hr on a level highway and then for 2 more hr through the mountains. His speed through the
mountains was 10 mph...
M=L/f((25/f) + 1) solve for f
M=L/f((25/f) + 1) solve for x
1000-3=
Si 2 es una raiz de n$x^{2}$ + (n-1)x +12 = 0 , halla la otra raiz
find x
3x - 29 = 6x - 7
6a-2b=8a=6c
2a+b=8b+6d
6c-2d=-3a-c
2c+d=-3b-d
9x + 25 = 13x - 19
5x + 7 = 8x - 71
In a 2-digit number, the unit's digit is 3 greater than the ten's digit. If the number is 4 times as large as the sum of its digit...