Answer:
Step-by-step explanation:
Indirect proportion. If no. of workers increased, the working days will be decreased.
No: workers to complete in 16 days = 20 * 12 /16 = 5 * 3 = 15 workers
3 more workers should be added to complete the work in 16 days
1.Write down the equation for calculating the volume of a sphere.
2. Find the radius
3.Cube the radius
4. Multiply the cubed radius by 4/3
5. Multiply the equation by π
<h3>The solution as an ordered pair is (x,y) = (2,2)</h3><h3>x = 2 and y = 2 pair up together.</h3>
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Work Shown:
4x+2y = 12
4x+2( y ) = 12
4x+2( 2x-2 ) = 12 ... replace y with 2x-2
4x+2( 2x ) + 2( -2 ) = 12 ... distribution rule
4x+4x-4 = 12
8x-4 = 12
8x-4+4 = 12+4 ... add 4 to both sides
8x = 16
8x/8 = 16/8 ... divide both sides by 8
x = 2 is the first part of the answer
Use x = 2 to find y
y = 2x-2
y = 2(2)-2 ... replace x with 2
y = 4-2
y = 2 is the second part of the answer
I agree the answer is 19.8