<span>x= -8 + y
-9x + 6y= 9
substitute </span>x= -8 + y into -9x + 6y= 9
-9x + 6y= 9
-9(-8 + y) + 6y= 9
72 - 9y + 6y = 9
-3y = -63
y = 21
<span>x= -8 + y
</span><span>x= -8 + 21
x = 13
solution (13, 21)</span>
Answer:
$578.81 or Account balance after 3 years = initial deposit + year 1 interest + year 2 interest + year 3 interest.
Year 1 interest = Year 2 interest = year 3 interest = 5% simple interest of $500 initial deposit = 5%/100% X $500 = $25/ year.
Account balance after 3 years = $500 + $25 + $25 + $25 = $575
Step-by-step explanation:
$500x1.05x1.05x1.05=$578.81
Answer:
1 cm = 350 meters
Step-by-step explanation:
2100/6 = 350
Answer:
a) x = -1 and y = -10
Step-by-step explanation:
The first part says find the value of y when the value of x is -3. Then the second part of the question is to find the value of x when the value of y is 2.
so lets solve part a)
So answer to part a is x = -1 and y = -10
similarly try the other parts.