Answer:
3 3/7 or 24/7 mins
Step-by-step explanation:
Let total job = X
Jeff's rate = X/6
Bob's rate = X/8
Combined rate = X/6 + X/8
(4X × 3X)/24 = 7X/24
7X/24 = X/T
T = X ÷ (7X/24)
T = X × (24/7X)
T = 24/7 mins
Shortcut:
T = product of individual times/sum of individual times
T = (6×8)/(6+8)
T = 48/14
T = 24/7
T = 3 3/7 mins
13x + 7x - 4x = -40
combine like terms o0n the left
16x = -40
divide both sides by 16
x = -5/2 or -2.5
Answer:
Step-by-step explanation:
Answer:
Point (4,7) completely satisfies the equation and is a solution to the equation.
Step-by-step explanation:
Given:
Equation:
To check if the point (4,7) is a solution to the given equation.
Solution:
The solution of an equation is given as which completely satisfies the equation.
To check if the point (4,7) is a solution to the given equation, we will plugin and in the given equation and see if it satisfies it or not.
Plugging in point (4,7) in the equation:
Simplifying.
The above equation is always true, and hence point (4,7) completely satisfies the equation and is a solution to the equation.
12x + 4 > 9
12x > 9 - 4
12x > 5
x > 0,41(6)
Answer
<span> 4, 9, 10, 11, 17</span>