Answer:
Step-by-step explanation:
This is simply a units conversion problem. It gives us for the number of passengers, the number of seats per carriage and the number of carriages per train. To change the units from passengers to trains without changing the value, we use the multiplicative identity (that is, 1).
350000 passengers
(350000 passengers) * 1
(350000 passengers) * ((1 carriage)/(32 passengers)) * ((1 train)/(15 carriages)
[note: passengers and carriages cancel. Leaving only trains]
(350000)*(1/32)*(1/15) trains [note: I write this way to paste into MS Excel]
729.1667 trains [oh, but don’t just round this number either up or down]
729 full trains can carry 729*32*15 = 349920 passengers
730 full trains can carry 730*32*15 = 350400 passengers
Now, we can say that 730 trains are adequate to carry 350000 passengers.
Youn could test all of the options by putting 8 and 3 in for a and b.
A. a - b = 5
8 - 3 = 5
5 = 5
B. a + b = 5
8 + 3 = 5
11 ≠ 5
C. a - b = 8
8 - 3 = 8
5 ≠ 8
D. a + b = 8
8 + 3 = 8
11 ≠ 8
As you can see, the only one that works is A. a - b = 5.
Answer:
b
Step-by-step explanation:
4(73)+3
273+3
276
Because you have to subsititue 73 for x. So you have to multiply 73 by 4 then what you get out of that you have to add it by 3.
Yes I can help you what do you need.
