Answer:
3, 3
Step-by-step explanation:
It needs permutations of the order does matter, like 3 people ordering from a coffee shop to see who goes first.
Combinations are when the order doesn't matter, like if you had 3 numbers behind your back and you had to guess the 3 not in order
It needs neither when you don't need to find the amount of choices you have (or something similar) for something
Answer:
The solution is (-3, 10.8)
Step-by-step explanation:
While it's rather obvious that you want to solve this system of linear equations, you should share that instruction when you post the problem.
To solve this system using elimination by addition and subtraction, combine the two equations as shown below (to eliminate y):
-0.18x + y = -6.54
-2.8x - y = -2.4
--------------------------
-2.98x = -8.94
Dividing both sides by -2.98, to isolate x, yields: x = -8.94 / (-2.98) = -3.
Then x = 3. Find y from -2.8x - y = -2.4: -2.8x + 2.4 = y, and here,
y = -2.8(-3) + 2.4 = 8.4 + 2.4 = 10.8
Then the solution is (-3, 10.8)
Answer:
The number of bowling balls were sold in the month of December is 42
Step-by-step explanation:
we are given
The company models its profit, P, using the formula
where
x is the number of bowling balls the company sells
Dobb's Bowling Company made a profit of $1,588 during the month of December
So, we can set P=1588
and then we can solve for x
now, we can factor it
So, the number of bowling balls were sold in the month of December is 42