“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

the last choice

step-by-step explanation:

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

you would have to sell 24 bracelets.

step-by-step explanation:

84/3.5 = 24