Answer:
-2
Step-by-step explanation:
3(a+1.5)=-1.5
a+1.5 = - 1.5/3 = - 0.5
a = - 0.5 - 1.5 = - 2
Degree days are the difference between the daily temperature mean, (high temperature plus low temperature divided by two) and 65°F. 65°F because we assume that at this temperature we do not need cooling or heating.
In our case the daily mean temperature is 83°F and X is the number of cooling-degree days.
X=83-65
X=18
Answer:
x=4
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
Step 2: Add 25x to both sides.
Step 3: Subtract 16 from both sides.
Step 4: Divide both sides by 9.
6x = 33 x= 33/6. x= 5 3/6 = 5 1/3
2/3x=8/15= x= 8/15÷2/3 x= 8/15 x 3/2 = 24/30 = 4/5
