Answer:
a = 3
Step-by-step explanation:
1) Simplify 5a - 9 + a to 6a - 9.
2) Add 9 to both sides.
3) Simplify 9 + 9 to 18.
4) Divide both sides by 6.
5) Simplify 18/6 to 3.
Therefor, the answer is, a = 3.
The correct answer is A. x=22
Since the angles of a rectangle are right angles (90 degrees) you would set it up as 90=5x-20. Then combine like terms and solve the equation. (If you need me to show you how step by step tell me)
Answer:
B. 125
Step-by-step explanation:
72 did not return the permission slips.
125-72= 53
So therefore 53 students are going on the field trip.
(4^9)^5 is equal to 4^45. You multiply 9 and 5 to get 45.
1.25x2=2.50
2.50x2=5.00
Total-7.50
20.00-7.50=12.50
