Answer: hay 16 vagones de pasajeros y 48 de carga
Step-by-step explanation:
Combination = doesn't matter what order
Permutation = order matters
There are <u>two</u> methods to work out combinations.
Method 1 List out possibilities
123 124 125 126 127 134 135 136 137 145 146 147 156 157 167
234 235 236 237 245 246 247 256 257 267
345 346 347 356 357 367
456 457 467
567
For a total of
35 combinations.
Method 2 Use a formula.
It's a rather complicated one, so only use it if you have a lot of possibilities.

(n is the number of choices, r is the amount you choose, and ! is a function that multiplies together all numbers down to 1)
Answer:
12.5 hours :)
Step-by-step explanation:
Let after t hours , the two men are 200 miles apart
So the distance traveled by fthe irst man is 6 miles
And the distance traveled by the second man is 10 miles
So the equation is 6t+10t=200
Therefore after 12.5 hours, they are 200 miles apart.
P.S. Please give me brainliest!
Answer:
-4
Step-by-step explanation:
y=3x - 1 x= -1
y = 3(-1) -1
y = -3 -1
y= -4
Answer:
-.7
Step-by-step explanation: