<em><u>Expression that represent the show the total cost for any number of rose bushes and tomato plant is:</u></em>
<em><u>Solution:</u></em>
Let "x" be the number of roses bush
Let "y" be the number of tomato plant
Cost of 1 rose bush = $ 5
Cost of 1 tomato plant = $ 2
To find: Expression that represent the show the total cost for any number of rose bushes and tomato plant
Total cost = number of roses bush x Cost of 1 rose bush + number of tomato plant x Cost of 1 tomato plant
Thus the expression is found where, x and y are the number of rose bush and tomoato plant bought respectively
Answer:
80/3 or 26 2/3
Step-by-step explanation:
-2 + y = 9 (subtract y from both sides)
-2 = 9 - y (subtract 9 from both sides)
-2 - 9 = y (multiply both sides by -1)
2 + 9 = y (simplify)
11 = y (substitute)
3x - 7 (11) = 3 (multiply)
3x - 77 = 3 (subtract 3 from both sides)
3x - 80 = 0 (subtract 3x from both sides)
-80 = -3x (multiply both sides by -1)
80 = 3x (divide both sides by 3)
80/3 = x (simplify if needed)
26 2/3 = x
Answer:
x = -6
y = 8
Step-by-step explanation:
Using substitution method.
2x + y = -4 -----------(I)
y = - 4 - 2x -----------(II)
5x + 3y = -6 -------------------(III)
Substitute y = -4 -2x in equation (III)
5x + 3(-4-2x) = - 6
5x - 12 - 6x = -6
5x - 6x - 12 = -6
Combine like terms
-x - 12 = -6 {Add 12 to both sides}
-x = -6 + 12
-x = 6 {Multiply by (-1)}
x = -6
Substitute x = -6 in equation (II)
y = - 4 - 2*(-6)
= -4 + 12
y = 8
The answer is 1.1, 1.3, and 1.13 can be used
