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S_A_V [24]
2 years ago
5

Trains Two trains, Train A and Train B. weigh a total of 196 tons. Train A is heavier than Train B. The

Mathematics
1 answer:
aleksklad [387]2 years ago
5 0

Answer:

Train A = 128

Train B = 68

Step-by-step explanation:

We can set up a system of equations for this problem

Let A = # of tons of Train A

Let B = # of tons of Train B

A + B = 196

A = B + 60

Now, we plug in A for the first equation, using substitution

(B+60) + B = 196

2B + 60 = 196

Subtract 60 from both sides

2B = 136

Divide both sides by 2

B = 68

Plug in 68 for B in the 2nd equation

A = 68 + 60

A = 128

Checking work: 128 + 68 = 196 :D hope this helped

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Step-by-step explanation:

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12 out of 30 people chose their favourite colour as blue calculate the angle you would use for blue on a pie chart
sergey [27]
First, I'll calculate the percentage:

\frac{12}{30} *100%= \frac{12*100}{30} = \frac{120}{3} =40

so it was 40 % of people that chose blue

And now we can calculate the angle;
 

the full chart would have 360 Degrees, and the "blue" portion of the chart would have 40 % od 360 or \frac{40*360}{100} =4*36=120+24=144


so the angle would be 144 degrees!
4 0
3 years ago
Of 20 students, 9 are girls<br><br> % of girls<br><br> % of boys
irina [24]
Girls: 45%
Boys : 55%
3 0
3 years ago
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A large bakery buys flour in 20-pound bags. The bakery uses an average of 1050 bags a year. Preparing an order and receiving a s
emmasim [6.3K]

Given the following:

  • Demand = 1050
  • Ordering cost = 15
  • Holding cost = 55

The economic order quantity is 24.

<h3>What is the economic order Quantity?</h3>

Eoq = √2 * demand * ordering cost / holding cost)

= √(2 * 1050 * 15 / 55)

EOQ = 24

<h3>What is the average number of bags on-hand?</h3>

The  Average inventory = EOQ / 2

= 24 / 2

= 12

<h3>How many orders per year will there be?</h3>

Expected number of orders = demand / EOQ

= 1050 / 24

= 44

<h3>What is the total cost of ordering and carrying flour?</h3>

Annual holding cost (AHC) = (EOQ / 2) * Holding cost

= (24 / 2) * 55

= 660

Annual ordering cost (AOC) = (demand / EOQ) * ordering cost

= (1050 / 24) * 15

= 656

Thus,

Total cost of managing = AHC + AOC

= 660 + 656

TCM = 1,316

<h3>If holding costs were to increase by $5 per year, how much would the minimum total annual cost?</h3>

5. For holding cost of 60

EOQ= √(2 * demand * ordering cost / holding cost)

= √(2 * 1050 * 15 / 60)

= 23

Annual holding cost = (EOQ / 2) * holding cost

this gives us

= (23 / 2) * 60

= 690

Annual ordering cost = (demand / EOQ) * ordering cost

= (1050 / 23) * 15

= 685

Total cost of managing = AHC+ AOC

= 690 + 685

= 1375

Change in total annual cost = new - old

= 1375 - 1316

= 59

Learn more about Economic order quantity:
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2 years ago
The ratio of girls to boys in Mrs.Johnson' class is 4 to 5. There are 12 girls in the class. What is the total number of student
gregori [183]

Answer:

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Step-by-step explanation:

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