Answer:
x = 15
Step-by-step explanation:
x/3 + 10 =15
Subtract 10 from each side
x/3+10-10 =15-10
x/3 = 5
Multiply each side by 3
x/3*3 = 5*3
x=15
Answer:
n = 0.38 rotation per second
Step-by-step explanation:
The device rotates according to the mathematical equation :
...(1)
Where n is the rotational speed and is measured in rotations per second (s).
r is radius of the circulator and is measured in meters (m).
We need to find the rotational speed when radius is 1.7 m. Put r = 1.7 m in equation (1).
Hence, the rotational speed is 0.38 rotation per second.
Answer:
-1.25
Step-by-step explanation:
t÷3-1÷2 = t÷1+3÷9
2t-3÷6 = 9t+3=9
18t - 27 = 54 + 18
18t -54t = 18 + 27
-36t = 45
Divide through by -36
t = -1.25
Answer:
The flag pole is 28 feet
building is 168 feet
Step-by-step explanation:
building+flagpole= 196 feet
(use algebra)
let the flagpole be a
building will be 6a
<h2>
so 6a+a= 196</h2>
7a= 196 = 28
it means the flag pole is 28feet
28×6 is the building= 168 feet
W= l-5
2(w+l)=68
2w+2l=68
2(l-5)+2l=68
2l-10+2l=68
4l = 78
l = 78/4
l = 39/2
l = 19,5
hope helped