Please help me with number 4 or explain how to figure it out. Thanks :)

The cost for each car entering President George Bush Turnpike at Beltline road is $0.75. The equation that represents this relat

vesna_86 [32]

From the definition of a function, a function associates every element of the domain to a unique element in the codomain.

In other words, if two elements are equal in the domain, then their images should also be equal.

Since, x represents the number of cars, we consider the universal set as N, the set of all natural numbers.

Let x, y ∈ N and x = y

Then, 0.75x = 0.75y

⇒ f(x) = f(y)

Therefore, images are equal, whenever elements are equal.

Hence, the function f(x) = 0.75x is a function. Also, note that the domain of the function is the set of all natural numbers and the range is the set of real numbers.

8 0

3 years ago

Which point is not on a graph of the line 2x-y=-1

Natalka [10]

Answer:

(5)(3,6)

Step-by-step explanation:

you have to multiply and divide to get ur answeer. cant give u the step, by step progress right now but if i rember i willl.

4 0

3 years ago

The equation c = 2.95g shows how much it costs to buy gas at a gas station on a certain day. In the equation, c represents the c

Alexxandr [17]

The equation c = 2.95g shows how much it costs to buy gas at a gas station on a certain day. In the equation, c represents the cost in dollars, and g represents

(a) four (gallons of gas, cost) pairs that fit this relationship.

Plug in some values for g and find out C

c = 2.95g

g= 1, C= 2.95(1) = 2.95

g= 2, C= 2.95(2) = 5.9

g= 3, C= 2.95(3) = 8.85

g= 4, C= 2.95(4) = 11.8

four pairs are (1,2.95) (2,5.9) (3,8.85) (4,11.8)

2. Create a table or graph of the relationship.

Use the above points we got from part (a) for graphing

The graph is attached below

(3) What does 2.95 represent in this situation?

g= 1, C= 2.95(1) = 2.95

This means when 1 gallon purchased then the cost is 2.95 dollars

2.95 represents the cost of 1 gallon of gas

(4) Jada's mom remarks, "You can get about a third of a gallon of gas for a dollar."

c = 2.95g

c is the cost , and g is gallons

cost is 1 dollar so we replace c with 1

1 = 2.95 g

Divide by 2.95 on both sides

$g=\frac{1}{2.95}$

That is one third of a gallon of gas

So she is correct.

8 0

4 years ago

grant starteda marathon at 8:00 A.M. he took 4 hours 49 minutes to complete the marathon. when did he crosd the finish line

Anna35 [415]

If he starts at 8:00 AM and you start counting up by 1 hour at a time...

8:00 - 9:00 = 1 hour
9:00 - 10:00 = 1 hour
10:00 - 11:00 = 1 hour
11:00 - 12:00 = 1 hour

So far that is 4 hours that have passed and we are up to 12:00. Now remember, when we reach 12:00 we switch from AM to PM (that's 12 noon).

We only have 49 minutes left so now we just add that in

12:49 PM is when he crossed the finish line.

4 0

3 years ago

I need help to answer this question

mr_godi [17]

5+5 = the amount the amount of females you don’t have

3 0

3 years ago