Answer:
z = 7
Step-by-step explanation:
4z - 8 = 20
Add 8 to each side
4z - 8+8 = 20+8
4z = 28
Divide each side by 4
4z/4 = 28/4
z = 7
Answer: 1. 200, 2. 300
Step-by-step explanation:
40 * 10/2 = 400/2 = 200
or this way:
40 = 20%
40/2 = 20
20 = 10%
20 * 10 = 200
——————————————
90 * 10/3 = 900/3 = 300
or this way:
90 = 30%
90/3 = 30
30 = 10%
30 * 10 = 300
It's not possible for a number to not have any prime factors be cause the number will always be able to have the factor of 1 whcih is a prime number
Answer:
Just how much dollars?
Step-by-step explanation:
If a whole number, then rounded would be the exact same thing. If a decimal, example, $12.28 then round it to $12.30. Hope this helps!
