SOLUTION: a amd scientist develops a formula which can turn a light bulb into a camel. working alone, it takes the sientist 4 hours to create one dose of formula. the mad scientist's slightl

Question 208798This question is from textbook algebra 1 an integrated approach
: a amd scientist develops a formula which can turn a light bulb into a camel. working alone, it takes the sientist 4 hours to create one dose of formula. the mad scientist's slightly mad assistant igor can make one dose in 12 hours. how long working together, will it take the maad scientist and igor to create one dose of formula? answer the question by using a table and the 5 step method. This question is from textbook algebra 1 an integrated approach

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a mad scientist develops a formula which can turn a light bulb into a camel. working alone, it takes the sientist 4 hours to create one dose of formula. the mad scientist's slightly mad assistant igor can make one dose in 12 hours. How long working together, will it take the mad scientist and igor to create one dose of formula? answer the question by using a table and the 5 step method.
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Scientist DATA:
time = 4 hr/job ; rate = 1/4 job/hr
----------
Igor DATA:
time = 12 hr/job ; rate = 1/12 job/hr
----------
Together DATA:
time = x hr/job ; rate = 1/x job/hr
===========================================
Equation:
rate + rate = together rate
1/4 + 1/12 = 1/x
Multiply thru by 12x to get:
3x + x = 12
4x = 12
x = 3 hr (time required for them to do the job together
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Cheers,
Stan H.
PS: Reply to stanbon@comcast.net since the algebra.com feedback
system is not working.

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