Answer:
a = 5
Step-by-step explanation:
a +a+4 + 2a-3 = 21
4a +1 =21
4a = 20
a = 5
I believe it’s 12. But I’m not sure
Answer:
n + 11 and 11 + n
Step-by-step explanation:
Let n be the unknown number,
n is increased by 11,
That is, n + 11
By the commutative property of addition,
The expression would be,
11 + n
For drawing a model that shows n + 11
Take two boxes in which first shows n and second shows 11 and add them,
Similarly, for showing 11 + n, take first box that shows 11 and second box that shows n then add them.
4.3496 miles.
HTH (Hope This Helps)
Answer:
Shown below
Step-by-step explanation:
you would start with positive one on the y axis then go up two and to the right 3 and continue it
Des.mos.com is also a graphing calculator that helps with this!