Answer:
he's not correct.
-15 = m
Step-by-step explanation:
-16 = -1 + m
-16 + 1 = m
-15 = m
Why does -1 became +1 , It is because you are adding 1 on both side so that we can cancel out the -1 and it will rest the m.
like this;
+1 -16 = -1 + m +1
-16 + 1 = (0 or nothing) + m
-15 = m
Answer:
7.
Step-by-step explanation:
15 - [7 + (-6)+ 1]^3
Using PEMDAS:
= 15 - [ 7-6+1]^3
Next work out what is in the parentheses:
= 15 - 2*3
Now the exponential:
= 15 - 8
= 7.
Answer:
3 packages of plates, 2 packages of cups
Step-by-step explanation:
Find the multiples of 8 and 12, the lowest one they have in common will help with your answer.
8 : 8 16 24 32 40 48 56
12 : 12 24 36 48
The number that they both have (least) in common is 24.
For 8, it is the 3rd multiple and for 12 it would be the second
Let me know if u can see this picture
Answer:
<h2> The second: 8m + 7n - 3 </h2>
Step-by-step explanation:
Q = 7m + 3n,
R = 11 - 2m,
S = n + 5,
T = -m - 3n + 8.
Q + S - T = 7m + 3n + (n + 5) - (-m - 3n + 8)
Q + S - T = <u>7m</u> + 3n + n + 5 <u>+ m</u> + 3n - 8
Q + S - T = 8m + 7n - 3
