Answer:
and 
Step-by-step explanation:
First, we are told "sum of 5 times one number, x, and 4 times a second number, y, is 75":
(1)
Then, we are told "he sum of the two numbers is 18":
(2)
At this point we have our system of equations and now we are able to find the values of
and
.
So, let's begin by isolating
from (2):
(3)
Substituting (3) in (1):
(4)
Finding
:
(5) This is the value of 
Substituting (5) in (1):
(6)
Finding
:
(7)
(8) This is the value of 
Simplify the left side.
Tap for more steps...
3−9x=2(−4x+7)
Simplify the right side.
Tap for more steps...
3−9x=−8x+14
Move all terms containing x
to the left side of the equation.
Tap for more steps...
3−x=14
Move all terms not containing x
to the right side of the equation.
Tap for more steps...
−x=11
Multiply each term in x=−11
by −1
Tap for more steps...
x=−11
Hope this helps!
Answer:
a. 0.027 or 2.7%
b. 0.973 or 97.3%
Step-by-step explanation:
Please kindly check the attached file for explanation
1 Pound is 0.453592 Kilograms
500 Pounds is 226.796 Kilograms
Hope i helped!
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Answer:
B. 14 ft approx
Step-by-step explanation:
Given data
A teepee has a conical shape
Diameter= 10ft
radius= 5 ft
Volume = 366ft³
Height = ????
The expression for the volume is
V= 1/3πr^2 h
substitute
366= 1/3*3.142*5^2*h
366= 1/3*78.55*h
366= 26.18h
h= 366/26.18
h=13.98 ft
h= 14 ft approx
Hence the Height is 14 ft approx