Answer:
26 customers
Step-by-step explanation:
Represent customers entering as y and those buying hot dogs as x


Required
Determine the number of people buying hotdogs (x)
Substitute 4x + 9 for y in the second equation

Collect Like Terms


Area of rectangular post card = length x width
For the given post card:
length = 4 in
width = (3+b) in
area = 24 in^2
So, substituting in the equation of the area:
24 = 4 x (3+b)
24 = 12 + 4b
24 - 12 = 4b
12 = 4b
b = 3 in
Therefore:
the length of the postcard = 4 inch
the width of the postcard = b+3 = 3 + 3 = 6 inch
Answer:
Crrent money=$400
Incresaes 7% every month therefore money will get=
400+400×7/100
=400+28
=$428 he will get..
Step-by-step explanation:
And 28 is his increase money
Answer:
Step-by-step explanation:
f(x) = x^2 + 3x - x/2
f(x) = x^2 + 2.5x
- 3x - 1/2x =
- 6x/2 - 1/2x =
- 5x/2 =
- 2.5x
f(6) = 6^2 + 2.5*6
f(6) = 36 + 15
f(6) = 51