Answer:
100/12=8 1/3
Step-by-step explanation:
Hope this helps
Answer:
add 9 to each side
Step-by-step explanation:
x^2 -6x = 5
Take the coefficient of the x term
-6
Divide by 2
-6/2=3
Square it
3^2 =9
Add 9 to each side
x^2 -6x+9 = 5+9
(x-3)^2=14
144 is the answer to the question
Answer:
C.) 21
Step-by-step explanation:
d = 22.5n + 27.5
Where d is the total amount of money earned and n is the number of items sold
Substitute:
500 = 22.5n + 27.5
We can substitute 500 for d because 500 is the total amount of money Kathryn wants to earn
Solve:
500 = 22.5n + 27.5
Subtract 27.5 on both sides:
500 = 22.5n + 27.5
-27.5 -27.5
472.5 = 22.5n
Divide by 22.5 on both sides:
472.5 = 22.5n
/22.5 /22.5
21 = n
Therefore, Kathryn must sell 21 items to make $500.
Answer:
x=8,9
Step-by-step explanation:
x^2-17x+72=0
(x-8)(x-9)=0
x=8,9