Answer:
(2,1)
Step-by-step explanation:
3x+y = 7
-2x +y = -3
Solve the second equation for y by adding 2x to each side
-2x+2x +y = -3+2x
y = -3 +2x
Substitute into the first equation
3x+ (-3+2x) = 7
Combine like terms
5x -3 = 7
Add 3 to each side
5x-3+3 = 7+3
5x = 10
Divide by 5
5x/5 = 10/5
x=2
Now we need to solve for y
y = -3 +2x
y = -3 +2(2)
y = -3+4
y =1
Answer:
4.5
Step-by-step explanation:
3^2=9
1/2*9=4.5
2+2+2+2+2+2+2+2+2 = 18
product -> 2^9=512
So for one 3.25x5= 16.25 then 16.25x2 = 32.50. So 40 dollars will be enough
Step-by-step explanation:
12:15 I believe if you are saying rounding to the hour by 1/4 quarters
