Engineering, 06.03.2021 01:00 Tyrant4life
Delicious Catering Services (DCS) has won a contract to provide catering services to two mining companies: Mine A and Mine B Management of DCS is faced with the challenge of deciding the mix of two modes of transporting foodstuff to the two mines. The rwo modes of transport are mini-bus and tuck. A truck transport services compeny has offered to make up to 10 truck tips per month at a cost of $2,500 and $2,000 per inp to Mine A and Mine B respectively. There are a number of mini-bus services available which can offer up to 24 inps per month at a cost of $1.200 per trip and $1,000 pes trip to Mine A and Mine B respecuvely.
Each truck can carry 4 tonnes of foodstuff per inp and each mini-bus can carry 2 tonnes per trip Provision of catering services at the mines is such that at least 48 tonnes of foodstuff are
required per month and the food stuff requ rement at Mine B is at most 2/3 that at Mine A per month, Also the foodstuff delivered monthly to Mine A should be at least 8 tonnes more thart
that delivered at Mine B
Due to mechanical breakdowns and the effect of weather, only 80% and 85% of trucks arrive
on time to deliver foodstuff at Mine A and B respectively However mimi-buses are more Telrable with 90% and 95% armving on time at Mine A and Mine B respectively. DCS has set
a standard that at jeast 90% of all trips must arrive on ume no matter the mix of mode of
transport chosen DCS has allocated a monthly budget of up to $18,000 and $12,000 for
transportation to Mine A and Mine B respectively. Management of DCS desires to know the
mix of trips of the two modes of transport to Mines A and B at the minimum monthly cost. mer
Formulate thts as a linear programming model.​
Answers: 3
Engineering, 04.07.2019 18:20
An engine runs on the ideal diesel cycle. the cycle has a compression ratio of 20 and a cutoff ratio of 2. the highest temperature in the cycle is 1200 k. if the heat into the system is 300 kj/kg of working fluid and using variable specific heats determine the work produced per mass of working fluid
Answers: 3
Engineering, 04.07.2019 19:10
The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false
Answers: 2
Engineering, 04.07.2019 19:10
With increases in magnification, which of the following occur? a. the field of view decreases. b. the ambient illumination decreases. c. the larger parts can be measured. d. the eyepiece must be raised.
Answers: 1
Engineering, 04.07.2019 19:20
Acarnot refrigerator operates in a room in which the temperature is 21°c and of power when operating. if the food compartment of the refrigerator is consumes 3 kw to be maintained at 2°c, determine (a) the coefficient of performance of the cycle and (b) the rate of heat removal from the food compartment. refrigerator cycle that has a higher coefficient of performance than that of the discussed (e) is it possible to develop a carn ot refrigerator, operating between the same temperature limits? explain
Answers: 2
Delicious Catering Services (DCS) has won a contract to provide catering services to two mining comp...
History, 09.10.2019 23:00
History, 09.10.2019 23:00
Mathematics, 09.10.2019 23:00
Physics, 09.10.2019 23:00
Mathematics, 09.10.2019 23:00
History, 09.10.2019 23:00
Biology, 09.10.2019 23:00
Mathematics, 09.10.2019 23:00
Mathematics, 09.10.2019 23:00
Health, 09.10.2019 23:00
Social Studies, 09.10.2019 23:00
History, 09.10.2019 23:00