Answer:
3a +16b
Step-by-step explanation:
Use the distributive property to eliminate parentheses:
7a +10b -4a +6b
Group like terms, if you need to:
(7a -4a) +(10b +6b)
Simplify each group:
3a +16b
Answer:
Step-by-step explanation:
In order to solve this problem, we just need to translate mathematically what the problem is talking about. First, we know that:
x=# of hours she spent running on her wheel.
y = # of hourse she spent scratching at her cage.
So, let's split the problem into little chunks of information that will be easier to translate. This is split it into sentences.
So first:
Julie's pet hamster Zoe kept Julie awake for at least an hour running on her exercise wheel and scratching at the corner of her cage. This means that the least amount of time Julie was awake as an hour in total, so this can be written as an inequality like this:
time spent running + time spent scratching is less than or equal to 1 hour
next,
Zoe ran on the wheel at least twice as long as she scratched at the quarters of her cage.
This is:
and finally, she spent more than 1/4 of an hour running on her wheel.
so the system of inequalities is the following:
Answer:
see i know the answer to the half
A) The intersection occurs at the same height 'y', so the y of each equation must be equal:
y=y implies <span>2−x = 8x+4. The solution is -2=9x, x = -2/9=2/3, and y = 20/9
(-2/9,20/9)
</span>
B)
X | Y1 | Y2
_____________
-3 5 -20
-2 4 -12
-1 3 -4
0 2 4
1 1 12
2 0 20
3 -1 28
C) I would draw each line with the values on the table. Where both lines cross is the intersection point. It should be (-2/9, 20/9)
Answer:
A
Step-by-step explanation: