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Arturiano [62]
2 years ago
8

I need help with this math problem.

Mathematics
1 answer:
statuscvo [17]2 years ago
8 0

Answer:

$2

Step-by-step explanation:

Intial fee is x. Number of stops is y. You can set up these equations.

  1. x+4y=8
  2. x+8y=14
  3. x+12y=20

You can subtract one from the other:

         x+8y=14

       - x+4y=8

       –––––––

              4y=6

We now know that 4y=6. The first equation had 4y, so we can put 6 instead of 4y.

  1. x+6=8
  2. Subract 6, x=2
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Damian reads 21 pages in 1 hour. How many pages can he read in 3 hours?
irinina [24]
If he can read 21 pages in 1 hour he can read 63 in 3 hours
3 0
2 years ago
Read 2 more answers
What equation describes the circle that is centered at (8, 3) and has a radius of 9
Sloan [31]

Answer:

<h3> (x-8)²+(y-3)² = 81</h3>

Step-by-step explanation:

The general equation of a circle is expressed as;

(x-a)²+(y-b)² = r² where;

(a, b) is the centre of the circle

r is the radius

Given the centre (8, 3) and the radius of 9, the equation of the circle will be;

(x-a)²+(y-b)² = r²

(x-8)²+(y-3)² = 9²

(x-8)²+(y-3)² = 81

hence the required equation is  (x-8)²+(y-3)² = 81

5 0
2 years ago
What is f(5) if f(1)=3.5 and f(x+1)=5\2 f(x)
katen-ka-za [31]

Answer:

f(5) = 136.71875‬

Step-by-step explanation:

f(5) if f(1)=3.5 and f(x+1)=5\2 f(x)

f(2) = (5/2)* f(1) = (5/2)* 3.5  = 8.75

f(3) = (5/3)*f(2) =(5/2) * 8.75

f(4) = (5/3)*f(3) =(5/2)*(5/2) * 8.75

f(5) = (5/3)*f(4) = (5/3)*(5/2)*(5/2) * 8.75

f(5) = (5/2)^4  * 3.5 = (625/16) * 3.5 = 136.71875‬

f(5) = 136.71875‬

4 0
3 years ago
in a regular polygon each interior angle is 140 greater than each exterior angle calculate the number of sides of each polygon .
Elodia [21]

Answer:

9

Step-by-step explanation:

Exterior sides =  180 - 140 = 40

number of sides = 360 / 40 = 9 sides

6 0
3 years ago
given the functions f(x)=4x^2-1, g(x)=x^2-8x+5, and h(x)=-3x^2-12x +1, rank them from least to greatest based on their axis of s
Lesechka [4]
The formula for axis of symmetry is -b/2a.

For f(x):
0/2(4)
0/8
Axis of symmetry= 0

For g(x)
-(-8)/2(1)
8/2
Axis of symmetry= 4

For h(x)
-(-12)/2(-3)
12/-6
Axis of symmetry= -2

Order from least to greatest: -2, 0, 4

Final answer: h(x), f(x), g(x)
7 0
2 years ago
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