Answer:
The number is 2
Step-by-step explanation:
Twice a number (z) = 2*z = 2z
Twice a number (z) added to 21 = 2z + 21
9 times the number added to 7 = 9z + 7
9z + 7 = 2z + 21
Subtract 2z form both sides
9z - 2z + 7 = 21
7z + 7 = 21
Subtract 7 from both sides
7z = 21 - 7
7z = 14
Divide both sides by 7
z = 14/7
z = 2
ACE IS THE CORRECT ANSWER
This is because
The triangle a c and e
Answer:
I think it is MN and NP maybe
Answer:
9/9
Step-by-step explanation:
I took the quiz and I got a 100
Answer:
B. 40
Step-by-step explanation:
(4x-120)
plug in your x value
(4x40-120)
multiply
(160-120)
subtract
40
