Answer:
2x-9
Step-by-step explanation:
a number=x
multiply by 2
2x
subtracted by 9
2x-9
Answer:40.00
Step-by-step explanation:just add
Answer:
24 cm and 11 cm
Step-by-step explanation:
GIVEN: The area of a triangular flag is
. Its altitude is
longer than twice its base.
TO FIND: lengths of the altitude and the base.
SOLUTION:
Let the altitude and the base of flag be
and 
According to the question

area of triangle 

Solving equation we get
then 
Hence the lengths of altitude and base of triangular flag is 24 cm and 11 cm respectively.
We can easily solve this by assuming a linear equation.
The general form is:
y = m x + b
where y is the price of gas, x is the year, m is the
slope or increase in price every year and b is the y-intercept
We can solve the slope by:
m = (3.25 – 1.75) / (2013 – 2003)
m = 0.15
y = 0.15 x + b
Using any pair data, we get the b:
3.25 = 0.15 (2013) + b
b = -298.7
y = 0.15 x – 298.7