Answer:
50 black keys
Step-by-step explanation:
for every set of 7 white keys there are 5 black keys
72/7 = 10
so there is a total of 10 full sets of keys
then you have 2 white keys remaining but that doesn't matter because they will just be on the dies and already have a black key next
so this means that you only have to calculate the number of 10 sets of black keys and thats 5 x 10.
hope this helps : )
Answer: D. (x+5)/(x-3)
Step-by-step explanation:
Domain = Set of all input values of a function.
range = set of all output values of a function.
Given: Domain: 
; range = 
We do not include a value for domain if it makes the expression indeterminant .
Since all the functions in options are fractions, here the denominator does not equal to 0.
But in option C and D, the denominator can be zero if x=3.
So , domain for then it 
Also, for option C if 
.which is not true.
Wher as in option D, 
Hence, Domain: ; range = is for option D.
Answer:
x = 10.66 so Daniel can purchase 10 snacks without going over his budget.
Step-by-step explanation:
65 = 4.50x + 17
Subtract 17 from both sides, you're left with 48 = 4.50x
You then divide 4.50 from both sides to get your answer!
Answer:
Cam
Step-by-step explanation:
Cam first multiplied both sides by 3 which removed the fraction on the left. They then correctly added 5 to both sides to get x on its own.
Hope this helps!
35/35-14/35=21/35=0.6=60%
