Answer:
Step-by-step explanation:
x + 2y = 8 -----------(I)
x - 2y = -4 -----------(II)
Add equation (I) & (II) and thus y will be eliminated and we can get the value of 'x'
(I) x + 2y = 8
(II) <u>x - 2y = -4</u><u> </u>{Now add}
2x = 4
x = 4/2
x = 2
Substitute x = 2 in equation (I)
2 + 2y = 8
2y = 8 - 2
2y = 6
y = 6/2
y = 3
Its C! Lets say x=30
|30-323|=50
This could technically be true because it would show if the temp is within range
Answer:
$8.19
Step-by-step explanation:
First start by taking 30% of 6.30. To do this you multiply 6.30 by .3 and get: 6.30 × .3 = 1.89
Then add 1.89 to the 6.30 because the book was 30% more. You then get: 6.30 + 1.89 = 8.19
