Respuesta :
Answer:
The temperature in the greenhouse was at least Â
70 degrees before the heater stopped working.
Step-by-step explanation:
Write an inequality for this situation. Use x for the temperature in the greenhouse before the heater stopped working.
Solve this inequality. Use inverse operations to get x alone on one side of the inequality symbol.
What operation is used in the inequality xminus3greater than or equals67​?
Subtraction
What is the inverse operation of​ subtraction?
Addition
try to get x alone on the left side of the inequality symbol. What value should be added to each side of the inequality xminus3greater than or equals67​?
3
Add 3 to each side and simplify.
xminus3
greater than or equals
67
This is the original inequality.
xminus3plus3
greater than or equals
67plus3
Add 3 to each side.
x
x
greater than or equals
67plus3
Simplify the left side.
x
greater than or equals
nothing
Simplify the right side.
x
greater than or equals
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