Answer:
The numbers that are equal to 7 are more Isley to occur because 6+1 is 7.
Step-by-step explanation:
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12v + 3b = 243
4v + 4b = 204....multiply by -3
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12v + 3b = 243
-12v - 12b = - 612 (result of multiplying by -3)
-------------------add
-9b = - 369
b = -369/-9
b = 41 <=== each bus holds 41 students
4v + 4b = 204
4v + 4(41) = 204
4v + 164 = 204
4v = 204 - 164
4v = 40
v = 40/4
v = 10 <== each van holds 10 students
He would need to work 8 hours. 168/12=14. 14x8=112.
therefore, the radius is 4.39