Answer:
Step-by-step explanation:So to find it you need to eliminate either x or y. 2x-5y=10 over 4x-10y=20. In order to get y to eliminate you need one equation to have a positive 10y and a negetive 10y. So you multiply both sides of the first equation by negetive 2 so it is now, -4x+10y=-20. Notice how all the numbers in both equations are opposite this gives us ims infinitaly many sollutions. So it is not A. Or b it will do the same thing. The answer is either D or C hope this helps
Answer:
The formula is F = P(1 + interest percent)^n
Here,
p =8000 dollar
interest percent =5.5% = (5.5/12)/100 =0.004583 (compounded monthly)
n =7 x 12 =84 (compounded monthly)
=> Mark's account balance after 7 years
F = 8000*(1+0.004583)^84 =11746.2503 dollar
Answer:
what is the question
Step-by-step explanation:
