Question

A state has a limit on the lengths of cargo trains. The train cannot exceed a length of 1,100 ft. Train A has 28 cars at 40 feet each, and train B has 34 cars at 30 feet each. Do the trains meet the requirement?
a.
Train A and Train B pass.
c.
Train A fails and Train B passes.
b.
Train A passes and Train B fails.
d.
none of these

Answer 1

28x40 and 34x30 are the equations

Answer 2

Train A = 28 * 40
Train B = 34 * 30

Answer 3

ok so?

Answer 4

28x40 is how much??

Answer 5

multiply 28*40 to get the length of train A

Answer 6

yes ma'am!

Answer 7

a=1120

Answer 8

Correct. Now, what does B equal?

Answer 9

and 34x30 is equal to train B's length...

Answer 10

so does train A pass or fail?

Answer 11

well is it longer than 1,100 ft??

Answer 12

b=
1020

Answer 13

a fails?

Answer 14

and is 1020 longer than 1,100 ft?

Answer 15

no it's shorter

Answer 16

good, yes A fails but B passes(:

Answer 17

okay thx everyone

Answer 18

exactly!

Answer 19

Train A = 28*40'. 28*40 = 1120'. 1120' is greater than 1100'.
Train B = 34 * 30'. 34 * 30 = 1020' is less than 1100'.

Answer 20

34*40 equales b's length