those lines mean "absolute value of"
if you thought of it like money "I have $20" the value is $20
but if you owed $20 you would have -$20 but the total value to the economy is still $20
this means that I A I is [6 3 2 3]
W = white keys
b = black keys
w + b = 88
We know the number of black keys, it is 36
w + 36 = 88
w + 36 - 36 = 88 - 36
w = 52
So, the number of white keys is 52.
Now, we can write the ratio.
It would be :
b : w
36 : 52
Let's simplify . . .
They are both divisible by 4:
36/4 : 52/4
Simplifies to . . .
9 : 13
So, the ratio is 9 black keys: 13 white keys.
Final Answer: 9 black keys : 13 white keys
*I looked to see if this was actually true on a real piano, and it was!
Answer:
1.5 I'm pretty shure
Step-by-step explanation:
Answer:
a. Refuel the vehicle before the Renter drives it away.
Step-by-step explanation:
The rental agency representative must check the fuel level, mark it on the check-out sheet and give a copy of the check-out sheet to the renter. He or she does not, however, need to refuel the vehicle for the renter.