Answer:
nine hours
Step-by-step explanation:
48 divided by 6 is 8 and 8 times 9 is 72
Answer:
Step-by-step explanation:
6(x +1)=24
(x+1) = 24/6 = 4
x+1 = 4
x = 3
Answer:
x = -2+- sqrt(6)
Step-by-step explanation:
Using completing the square, let x^2+4x-2 = 0 and solve the steps to get the answerx^2 + 4x - 2 =0
add 2 to both sides to get x^2 + 4x = 2
then add 4 to both sides to get x^2 + 4x + 4 = 6
Get the left hand side to the square formate: (x+2)^2 = 6
then simplify x+2 = sqrt(6) or x+2 = -sqrt(6)
so x = sqrt(6) - 2 or x = -sqrt(6) -2
Answer:
a/c and d/e are equal to cos(b)
Step-by-step explanation:
i used substitute and solve at first, but that didnt work too well so i moved on to the guess and check method.
my guess is a/c and d/e are equal to cos(b), can anyone check this?
#5
a - 8 = 10 -2a
a +2a = 10+8
3a = 18
a= 18/3
a= 6
#6
p - 11 -2p = 13 - 5p
Combine like terms
(p - 2p) +(-11) = 13 - 5p
-p - 11 = 13 - 5p
-p + 5p = 13 + 11
5p = 24
p= 24/5
p= 6
#7
12x + 3 - 4x - 3 = 8
Combine like terms
(12x -4x) + (3 - 3) = 8
8x = 8
x= 8/8
x= 1
#8
5x -2 + 3x - 4 = 2x - 8 + 2
Combine like terms
(5x + 3x ) + (-2 - 4) = 2x + (-8 +2)
8x -6 = 2x - 6
8x - 2x = -6 + 6
6x = 0
x= 0/6
x= 0
#17
(5-x)/ 5 = 1
( 5-x)/5 * (5) = 1*5
5 - x = 5
-x = 5 -5
-x = 0
Divide both sides by 1so we can eliminate the negative sign
-x/1 = 0/1
x= 0
I hope i help :)
