Answer:
7 degrees
Step-by-step explanation:
The temperature starts at -5. It rises 20 degrees so that means it is now 15 degrees. It decreased 8 degrees so now it is 7 degrees.
The main thing you are doing is adding and subtracting
I think the answer is X= 3
This is the commutative property
Answer:
a = 8.2 cm, b = 37.5 cm
Step-by-step explanation:
80/500 = (a/20.5)²
a²/420.25 = 80/500
a² = (80 * 420.25)/500 = 67.24
a = 8.2 cm
80/500 = (15/b)²
225/b²=80/500
b² = (225 * 500)/80 = 1406.25
b = 37.5 cm
Answer:
I think you meant to put an x instead of a r in that equations because 9x-15 is the correct answer so B
Explanation:
Step 1: combine any like terms you can this makes it
5(2x-3)-x
Step 2: distribute 5 to anything in parentheses
10x-15-x
Step 3:
Combine more like terms
9x-15
Step 4: see if there are any more terms you can combine if not it is simplified so the answer here is 9x-15
