answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
RUDIKE [14]
2 years ago
11

The following situation can be modeled by a linear function. Write an equation for the linear function and use it to answer the

given question. Be sure you clearly identify the independent and dependent variables. Is a linear model reasonable for the situation​ described? You can rent time on computers at the local copy center for an ​$8 setup charge and an additional ​$5.50 for every 10 minutes. How much time can be rented for ​$25​?
Select the correct choice below and fill in the answer box to complete your choice. A. The independent variable is rental cost​ (r), in​ dollars, and the dependent variable is time​ (t), in minutes. The linear function that models this situation is t equals to . ​(Simplify your answer. Do not include the​ $ symbol in your​ answer.)

B. The independent variable is time​ (t), in​ minutes, and the dependent variable is rental cost​ (r), in dollars. The linear function that models this situation is r equals .

​(Simplify your answer. Do not include the​ $ symbol in your​ answer.)

How many minutes can be rented for ​$25. ​(Round to the nearest minute as​ needed.)

A linear model reasonable for this situation
Mathematics
1 answer:
irina1246 [14]2 years ago
3 0

Answer:

Part 1) Option B. The independent variable is time​ (t), in​ minutes, and the dependent variable is rental cost​ (r), in dollars. The linear function that models this situation is r equals to r=0.55x+8

Part 2) 30 minutes

Step-by-step explanation:

Part 1)

Let

r ------> the rental cost (dependent variable)

t -----> the time in minutes (independent variable)

The linear equation that represent this problem is equal to

r=(5.50/10)t+8

r=0.55t+8

Part 2) How many minutes can be rented for ​$25. ​(Round to the nearest minute as​ needed.)

we have

r=0.55t+8

For r=$25

substitute and solve for t

25=0.55t+8

0.55t=25-8

0.55t=17

t=30.9 minutes

Round down

t=30 minutes

Note If you round up to 31 minutes the rental cost exceed $25

You might be interested in
Archimedes (ca. 287-212 B.C.) was able to use clever geometric means to determine the relative volumes of a cylinder and the con
VLD [36.1K]

Answer:

The ration of the volume of  cone to that of   cylinder is   \frac{V_{cone}}{V_{cy}} = \frac{1}{3}  

Step-by-step explanation:

From the question we are told that

 The volume of a cone is mathematically represented as

        V_{cone} = \frac{1}{3} \pi r^2 h

The volume of a cylinder is mathematically represented as

       V_{cy} = \pi r^2 h

Now the ratio we are to obtain is

          \frac{V_{cone}}{V_{cy}}  = \frac{\frac{1}{3}  \pi r^2 h}{\pi r^2 h}    

                   \frac{V_{cone}}{V_{cy}} = \frac{\frac{1}{3} }{1}         Note: this is possible because the height and base

                   \frac{V_{cone}}{V_{cy}} = \frac{1}{3}        radius  are the same

6 0
2 years ago
What can be concluded about the line represented in the table? Check all that apply. x y –6 –7 2 –3 8 0 The slope is 2. The slop
Stels [109]
The first thing we must do for this case is to find the equation of the line.
 y-yo = m (x-xo)

 We have then:
 m = (y2 - y1) / (x2-x1)

m = (-3 - 0) / (2-8)

m = 1/2
 We choose an ordered pair:
 (xo, yo) = (8, 0)

 Substituting values:
 y-0 = (1/2) (x-8)

y = (1/2) x - 4
 
 From here we conclude:

 Intersection with y:
 
We evaluate x = 0 in the function:
 y = (1/2) (0) - 4

y = -4

 Slope of the line:
 m = 1/2


 Point (-2, -5):
 
We evaluate the value of x = -2 and the value of y = -5
 -5 = (1/2) (- 2) - 4

-5 = -1 - 4

-5 = - 5
 The equation is satisfied.

 Point (8, 0):
 
It is part of the table, therefore belongs to the line.

 Answer:
 
The slope is 1/2
 
The y-intercept is -4.
 
The points (-2, -5) and (8, 0) are also on the line.
7 0
2 years ago
Read 2 more answers
Is the fraction 315/8 irrational
Debora [2.8K]

Answer:

315/8 GIVES 39.375.

But 35.375 Is actually a rational number,because it is terminating after 3 decimal places.

Hence its not a rational number

3 0
2 years ago
Read 2 more answers
A 12-foot high ladder reaches a tree limb when it leans at a 36 degree angle with the ground. Approximately how far away is the
Allisa [31]
Look at the picture.

\cos 36^\circ = \frac{x}{12} \\
0.809 \approx \frac{x}{12} \\
0.809 \times 12 \approx x \\
x \approx 9.708

The base of the ladder is approximately 9.708 feet from the tree trunk base.

4 0
2 years ago
Consider circle O, in which arc XY measures 16π cm. The length of a radius of the circle is 32 cm.
natali 33 [55]

Answer:

Circumference: 64π

Ratio:      1 : 4

Measure of ∠xoy:  π/2    

Step-by-step explanation:

We are given an arc length of 16π.  Since it's in terms of pi, we use the formula

S = rФ    where r is the radius, and Ф is the measure of the angle in radians (in terms of pi)

We are given S = 16π and r = 32, plug those in and find Ф

16π = 32Ф

  16π/32 = Ф

       π/2 = Ф

This is the measure of the central angle.  

The angle is π/2 radians.  There are 2π radians in the circumference, so the circumference is 4 times the arc length created by the central angle.  (There are 4 halves in 2)  so the ratio of the arc length tothe circumference is 1 : 4

The formula for circumference is C = 2πr, where r is the radius, so we hace

C = 2π(32) = 64π

8 0
2 years ago
Read 2 more answers
Other questions:
  • Tina and Nonly wanted to s whose car gets better gas mileage, so they each drove 210 miles and recorded how much gas they used.
    6·2 answers
  • A triangle has angles that measure 46 and 84<br><br> what is the third angle?
    14·1 answer
  • Bill, George, and Ross, in order, roll a die. The first one to roll an even number wins and the game is ended. What is the proba
    8·1 answer
  • You know that the current exchange rate for US dollars (USD) to Indian rupees (INR) is 1:45.85, that the exchange rate for India
    14·2 answers
  • The proof for the power property of logarithms appears in the table with an expression missing.
    14·2 answers
  • HURRY BRAINLIEST AND 40 POINTS!!!
    9·2 answers
  • There are 150 students in an eleventh grade high school class. there are 45 students in the soccer team and 35 students in the b
    15·1 answer
  • Simplify: -3(y + 2)^2– 5 + 6y<br> What is the simplified product in standard form?
    6·2 answers
  • Using two or more complete sentences, describe how to find the general rule for the arithmetic sequence with a4 = -1 and a6 = -1
    11·1 answer
  • 311, 305,299,...Find the 32nd term.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!