Let's look at each one of the intervals.
Interval A
Interval A looks like she's going at a pretty steady pace, so Interval A is not the correct answer.
Interval B
Interval B looks like she stays at 2.5 for an hour. That looks like a traffic jam to me!
The correct answer is Interval B.
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Answer:
7x2=
14+5=
x a
Step-by-step explanation:
You usually don't write the answer after the equal symbol. You could, or can, write the answer after the equal symbol to make it into a 2 step equation.
7x2= 14
14+5= x a
So you would first find the amount of candy that Laurie has, which is 45. When you divide it by 6, you should get 7 with a remainder of 3. So the solution is 3 pieces of candy left over.
a^2 + 2a - 3 = 0
a^2 + 2a = 3
a^2 + 2a + 1 = 3 + 1 (I added a 1 to both sides)
a^2 + 2a + 1= 4
(a + 1)^2 = 4
a = -3, 1
