2•6-2•5x would be without parentheses
Answer:
1/4
Step-by-step explanation:
there is 3 black marbles and 3+4+5=12 total marbles. 3/12=1/4
1. B 2. C 3. A 4. A 5. A 6. B
Answer:
16 - 2r
Step-by-step explanation:
2 times by 4 - 2r = -2 times by r + 5
6 + 4r = -2r - 10
Change the number to its partner.
6 + 10 = -2r - 4r
16 = 2r
So, the answer is 16 - 2r
Answer:
39.5
Step-by-step explanation:
From low to high:
36, 36, 37, 37, 38, 38, 39, 40, 40, 40, 45, 45, 45, 45
Median:
39, 40
(39 + 40)/2
79/2
39.5