Answer:
y=-2 x=-2
Step-by-step explanation:
y=-x-4
y=x
you can plug y in for x in the first equation by using substitution
y=-y-4
and then you solve for y
2y=-4
y=-2
so y equals -2. Since y=x, x also equals -2. Therefore
y=-2 x=-2
Answer:
B.
Step-by-step explanation:
If you add the presents then calculate that percent off of of her last paycheck you will find your answer
3x10^8 is 7 times larger than 3x10^2
,
of the usual price is the savings .
<u>Step-by-step explanation:</u>
Here we have , At a hardware store, a tool set normally costs $80. During a sale this week, the tool set costs $12 less than usual. We need to find What percentage of the usual price is the savings . Let's find out:
Initially we have cost as $80 , in sale it is $12 less i.e.
⇒ 
⇒ 
So , percentage of the usual price is the savings :
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
Therefore ,
of the usual price is the savings .