Answer:
D
Step-by-step explanation:
First of, associative property of addition is rearranging the parenthesis and not moving the numbers
A is incorrect because you can not take out the parenthesis in the equation
B is inccorrect because they change the position of the number
C is incorrect because they change the position of number
D is correct. It only change the position of the parenthesis
There are 17 hops in a hop, a skip, and a jump.
<h3>
</h3><h3>
How to perform changes of units?</h3>
We have the relations:
- 1 skip = 4 hops.
- 1 jump = 3 skips.
How many hops are in a hop, a skip and a jump?
So we have:
1 hop + 1 skip + 1 jump.
First, using the second relation we rewrite:
1 hop + 1 skip + 3 skips = 1 hop + 4 skips.
Now, using the first relation:
1 hop + 4 skips = 1 hop + 4*(4 hops) = 1 hop + 16 hops = 17 hops.
There are 17 hops in a hop, a skip, and a jump.
If you want to learn more about changes of units:
brainly.com/question/9032119
#SPJ1
Question ? There is no question to help
Believe it or not, this is the second version of Q is very similar to the first, even though it doesn't really look like it. We can represent the second version as a * (1 + r)^t
See the similarity between this and the first version? Thus, we can represent what is given in the problem as:
Q = a * b^t = a * (1 + r)^t
Thus, b = 1 + r. Since b = 0.8, we can find r.
0.8 = 1 + r
r = -0.2, or r = -20%.
