Divide two corresponding sides:
GN is corresponding to AL
15 /20 = 3/4
The scale is 3/4
Answer: -7
Step-by-step explanation:
To calculate mean , the formula is given by:-

From the given values of temperature in the table.
The sum of temperature in degrees Fahrenheit, in the city for those 5 days is given by 
The number of days N = 5
So the mean lowest temperature, in degrees fahrenheit, in the city for those 5 days is given by:-

Answer:
10 units
Step-by-step explanation:
In this equation the parenthesis act as a multiplier, so you take w(2w + 2) = 40.
the variable w represents the number 1, so you multiply the numbers within the parenthesis.
w x 2w = 2w
w x 2 = 2w
so now you have 2w + 2w = 40
add the w's for 4w = 40
Now you need to get rid of the number next to the W.
divide the four from the W and divide the 40 as well
4w/4= w
40/4 = 10
W=10
Answer:
12 gallons
Step-by-step explanation:
If it takes 20 h for 5 gallons to be filled, it takes 4 h for 1 gallon to be filled. This is the ratio. You multiply 4 h by 12 to get 48 h, so you multiply 1 gallon by 12 as well. This is 12 gallons.
Vertical angles are equal
so
4x + 7 = 5(x - 4)
4x + 7 = 5x - 20
5x - 4x = 7 + 20
x = 27