Step-by-step explanation:
Completing the square:
x^2 + 10x - 13 = x^2 + 10x + 25 - 25 - 13 = (x + 5)^2 - 38
Part A:
25 - 25
Part B:
(x + 5)^2 - 38
Answer:-5/z ; z=5 solution -1
Step-by-step explanation:
-5/5
Convert 12 pounds to ounces which is 192 ounces.
Divide the price by the ounces. That would get $0.09765625 rounded to $0.10 per ounce.
So first you would take 20% of 30 which would be set of as .2 x 30 which equals 6. So your answer would be 6 students
Answer:
63 donuts
Step-by-step explanation:
210 donuts -> 10 hours
x donuts -> 3 hours
This is already setup for a proportion:
Cross multiply:
Simplify:
Divide both sides by 10:
Simplify:
63 donuts can be made in hours.