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Anna [14]
3 years ago
12

Find the constant proportionality (r) using the value for r, enter an equation in the form of. C=rg that represents the relation

ship between the number of the gallons of gasoline used (g) and the total cost(c)
Mathematics
1 answer:
CaHeK987 [17]3 years ago
8 0

Answer:

3.333

C = 3.3333g

Step-by-step explanation:

Given the relation : C = rg

C = Total cost of gasoline

g = Number of gallons of gasoline used

r = constant of proportionality

Picking any point on the graph :

At cost, c = $30

Number of gallons of gasoline used, g = 9

Putting the values into our equation :

C = rg

$30 = r * 9

30 = 9r

Divide both sides by 9

30/9 = 9r / 9

3.333 = r

Hence, constant of proportionality, r = 3.333

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nadya68 [22]

Answer:

(in order from smallest to largest) D. C. A. (0.5) B.

Step-by-step explanation:

first 1/10 is the smallest so it will go the closest to 0 then 1/4 then 2/5 then 2/3

6 0
4 years ago
The volume of a rectangular prism is represented by the function x^3+9x^2+6x-16.The Length Of The box is x+2,while the height is
vladimir2022 [97]

Answer:

The correct answer is:  width b = x - 1

Step-by-step explanation:

Given:

Polynomial function or cubic equation which represents the volume of the rectangular prism   P(x) = x³ + 9 x² + 6 x - 16

The formula to calculating volume of the rectangular prism is:

V = a · b · c   Where a is length of the base, b width of the base and c is height

In this case  a = x + 2, c = x + 8 and b = ?

We can factorize the given equation using the Bezu theorem :

P(1) = 1³ + 9·  1² + 6 · 1 - 16 = 0

This means that the polynomial is divided by the binomial (x - 1) without residue.

We will divide polynomial function with binomial (x - 1)

(x³ + 9 x² + 6 x - 16) : (x - 1) = x² + 10 x + 16

When we multiply  a · c = (x + 2) (x + 8) = x² + 10 x + 16

We have formula V = a · b · c,  from which we conclude that

width is b = (x - 1)

The second solution is to divide P(x) with a · c = (x + 2) (x + 8) = x² + 10 x + 16

and get b = (x - 1)

God with you!!!

3 0
3 years ago
Solve the following for the indicated variable. <br> X - 4y = -5 for x
Shtirlitz [24]
X - 4y = -5
x = 4y -5

5 0
3 years ago
Write a problem about a group of objects in your classroom
erik [133]

The seats in the classroom form a square pattern
of four columns and six rows.

There is one of these mystery objects in every seat
between the hours of 9:00 AM and 12:00 Noon,
and also between the hours of  1:00 PM and 4:30 PM.
 
a).  How many objects are there in seats at  12:45 PM ?

b).  How many objects are there in seats at  2:07 PM ?

c).  What do you think the mystery objects are ?

3 0
4 years ago
Read 2 more answers
A company placed $500,000 in three different investment plans.
Paha777 [63]

Answer:

B. $200,000

Step-by-step explanation:

Let x be the amount placed at 5.5%

3x is the amount placed at 5%

This leaves the rest for the 4.5 %   500000- x - 3x = 500000-4x

Assuming simple interest

I = PRT where I is interest, P is principle, rate is rate and t  is time

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I = x * .055 * 1 = .055x

Interest for the 5.% for 1 year is

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Interest for the 4.5% for 1 year is

I = 500000-4x * .045 * 1 = 22500 - 0.18 x

Add the interest together to get the income for 1 year

.055x+  .15x+22500 - 0.18 x=25,000

Combine like terms

0.025x+22500=25000

Subtract 22500

.025x =2500

Divide by .025

x =100000  

short term notes is 100000

3*x = 300000 = government bonds

The rest is utility bonds 500000- 100000-300000 = 100000

We want how much more in government bond than utility bond

300000 -100000 = 200000

8 0
3 years ago
Read 2 more answers
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