NO, it's not you have to move the negative 7 to the other side wich makes it positive so you will be left with -10y=7x+40 so then you divide everything by -10
so then it will be y=7/-10x+40/-10
so the final answer will be y=7/-10-4
{ 5 x - y = 20
2 x + y = 15
_____________
7 x = 35
x = 35 / 7
x = 5
For y :
2 x + y = 15
2*(5) + y = 15
10 + y = 15
y = 15 - 10
y = 5
Answer A ( 5,5 )
hope this helps!
9514 1404 393
Answer:
$875
Step-by-step explanation:
The account pays simple interest, so the formula for the balance is ...
A = P(1 +rt)
A = $500(1 +0.025×30) = $500(1.75) = $875
There will be $875 in the account at age 30.
Answer:
The triangle is not acute because 2² + 4² < 5².
Step-by-step explanation: