Aclass of 195 students went on a field trip they took 7 cars and some cars and some buses find of cars and the numbers of busses they took if each other holds 5 students and each bus hold 45 students

Call the buses B and the cars C:

B + C = 7 [7 total vehicles]

45B + 5C = 195 [at 45 per bus and 5 per car, there were 195 students]

Use the first equation to express C in terms of B by subtracting B from both sides:

B + C = 7 becomes C = 7 - B

Substitute 7 - B for C in the second equation:

45B + 5(7 - B) = 195

Multiply out:

45B + 35 - 5B = 195

Simplify and subtract 35 from both sides:

40B = 160

Divide both sides by 40:

B = 4

There were 4 buses and 3 cars used

the answer is 24

step-by-step explanation:

the data of the detroit pistons in numerical order from least to greatest is 0.30, 0.37, 0.55, 0.62, 0.69, 0.72, 0.73, 0.75, 0.77, 0.78, 0.80, 0.81, 0.81, 0.83, 0.84, 0.89

the data of the miami heat in numerical order from least to greatest is 0.50, 0.50, 0.56, 0.57, 0.67, 0.72, 0.72, 0.72, 0.75, 0.75, 0.76, 0.81, 0.82, 0.90, 1.00, 1.00

the detroit pistons median : 1.52

the miami heat median: 1.47

the iqr of this data is 0.05