Solve for x:
10 (x + 2) = 5 (x + 8)
Expand out terms of the left hand side:
10 x + 20 = 5 (x + 8)
Expand out terms of the right hand side:
10 x + 20 = 5 x + 40
Subtract 5 x from both sides:
(10 x - 5 x) + 20 = (5 x - 5 x) + 40
10 x - 5 x = 5 x:
5 x + 20 = (5 x - 5 x) + 40
5 x - 5 x = 0:
5 x + 20 = 40
Subtract 20 from both sides:
5 x + (20 - 20) = 40 - 20
20 - 20 = 0:
5 x = 40 - 20
40 - 20 = 20:
5 x = 20
Divide both sides of 5 x = 20 by 5:
(5 x)/5 = 20/5
5/5 = 1:
x = 20/5
The gcd of 20 and 5 is 5, so 20/5 = (5×4)/(5×1) = 5/5×4 = 4:
Answer: x = 4
<span>Round trip for robot, because it has to get to the destination and back = 3 miles
Rate of robot is 4 miles per hour.
t = time for robot to make delivery.
4r = 3
r = 3/4 = 0.75
It will take the robot 0.75 hours to make the delivery and come back to re restaurant.</span>
Answer:
okay it simple the answer is D
Step-by-step explanation:
im just smart I guess
Answer:
<h3>
x₁ = -1, x₂ = 3</h3>
Step-by-step explanation:
So,
15/390 = 5/130 = 1/26
In decimal form, that is 0.03846153846...