Sub x=3 into ((x^2)-x)^2 - (x^2 - x) = 30. So the answer is A.
Answer:
equals 800
Step-by-step explanation:
10 x 10 x 8
you would multiply
Answer:
315 people
Step-by-step explanation:
Using the given ratio, we can figure out the number of children on the train by doing cross multiplication.
Let x = # of children on train.
7/2 = 245/x
7x = 490
x = 70 children
The total number of people = 70 + 245 = 315 people total
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