Answer:
(x, y) = (-3 5/8, 1 5/16)
Step-by-step explanation:
Add y+14 to the second equation to get ...
3.5x +14 = y
Substitute this for y in the first equation:
2.5x -3(3.5x +14) = -13
2.5x -10.5x -42 = -13
-8x = 29
x = -29/8 = -3 5/8
Using this in the formula for y, we get ...
3.5(-29/8) +14 = y
-203/16 +14 = y = 21/16 = 1 5/16
1001/2=? $ 0.05(x)
1001/3=? $ 0.10(x)
1001/4=? +$ 0.25(x)
_______
The constant of variation is the number that relates two variables that are directly proportional or inversely proportional to one another.
Because the amount of money varies directly with the amount of gas the constant of variation is the price per gallon
$21.87÷9 = $2.43
2.43 is the answer.
Answer:
The first one of 23 centimeters squared
The second is 48 centimeters squared.
sorry if it's wrong, my mental math isn't spot on
20 greater than or equal to X less than or equal to 60
20 _
