Answer:
(x,y)=(5,-1)
Step-by-step explanation:
1. 2x+y=9 ---> y=9-2x
2. Substitute y=9-2x into 3x-2y=17 ---> 3x-2(9-2x)=17 ---> 3x-18+4x=17 --> 7x=35 ---> x=5.
3. Substitute x=5 into 2x+y=9 ---> 2*5+y=9 ---> y=9-10 ---> y= -1
Answer:
a is the answer
Step-by-step explanation:
Since the Davis family put a $20,000 down payment on the house they purchased and also took out a $265,000 mortgage, that means the purchase price of the house is $285,000. To budget 1% of purchase price means about $2,850 for the year to pay for unexpected expenses.
Answer:
d) 1.25 g
Step-by-step explanation:
If it has a half life of 40 days, there will be 5 half-lives in that span of time so if you divide 40 by 2, 5 times or just 
, it will equal 1.25.
