Mathematics, 14.04.2020 09:16 waterdrop026
“The captain of a rafting boat takes his crew down river for 6 hours, covering a total of 56 miles. When he realizes
he left one of his passengers behind, he is forced to paddle back upriver for 8 miles. The trip back up took him 3
hours."
A student used the following system of equations to model the situation given above. Which of the statements is
true about the system of equations the student used?
b = the speed of the boat
r = the speed of the current
8(6-r) = 3
16(6+r) = 56
A. The system of equations the student used is correct.
B. The top equation in the system is incorrect.
C. The bottom equation in the system is incorrect.
D. Both equations in the system are incorrect
Please select the best answer from the choices provided
Answers: 2
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Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?
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“The captain of a rafting boat takes his crew down river for 6 hours, covering a total of 56 miles....
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