You can create two equations.
"<span>A car travels 20 mph slower in a bad rain storm than in sunny weather."
</span>

Where 'x' represents speed in sunny weather and 'y' represents speed in rainy weather.
"<span>The car travels the same distance in 2 hrs in sunny weather as it does in 3 hrs in rainy weather."

</span>Where 'x' represents speed in sunny weather and 'y' represents speed in rainy weather.
We want to find the speed of the car in sunny weather, or 'x'. Plug in the value for 'y' in the first equation into the second equation.


Distribute:

Subtract 3x to both sides:

Divide -1 to both sides:

So the car goes 60 mph in sunny weather.
Answer:
3rd option
Step-by-step explanation:
x < 7
means that x cannot equal 7 but all values less than 7
since not equal at either end of interval use parenthesis, not brackets , then
(- ∞ , 7 ) ← is the required interval
12x+12 step by step below
One way is to:
First, multiply 2 by the term inside the parenthesis.
Second, add eleven on both sides.
Third, divide using 4x on both sides.
This will give you your first method.