algebra
Let the # = x Four time the # = 4(x) The # increased by 6 4x + 6 = 94
math
First race car driver: time = distance / speed time = 50 miles / 90 mph time = 0.55556 x 60 time = 33 minutes 20 seconds The first race car driver will took 33 minutes & 20 seconds to finish the race Fifteen minutes later a second race car drive start time = distance / speed t...
Math
What “P” stands for?
algebra
4/5(2x - 3)> 12 (8/5)x - 12/5 > 12 (8/5)x > 12 + (12/5) (8/5)x > 72/5 x > (72/5)/(8/5) x > (72/5) x (5/8) x > ? Finish it from there!
math
No! If you take the (-9) over on the left-hand side of the equation the sign will change to positive.
algebra
t =(-b}ã(b^2-4ac))/2a t =(-7}ã(7^2-4(15)(-2)))/(2(15)) t=(-7}ã(49 +120))/30 t=(-7}ã169)/30 t=(-7}13)/30 t=(-7+13)/30 = 6/30 = 1/5 t=(-7-13)/30 = -(20/30) = -(2/3) Therefore, t = 1/5 & -(2/3)
math
x + 1/6 = 1/3 x = 1/3 - 1/6 x = ? Finish it from there!
math
x + 6y = 12 --- eq 1 -x + 7y = 1 --- eq 2 ------------ 13y = 13 y = 13/13 y = 1 Sub y = 1 in eq 1 or eq 2 and find for x
Algebra
3x^2 - 27 3(x^2 - 9) 3[(x - 3)(? + ?)]
math
time = distance / speed time = 17 mile / 43 mph time = 0.39535 = (0.3935 x 60) = 23.72 minutes. Now, multiply 23.72 by 60 = ? seconds
For Further Reading
