1answer.
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
Marrrta [24]
3 years ago
6

Justin is considering two websites for downloading music.The costs are detailed here.

Mathematics
2 answers:
asambeis [7]3 years ago
8 0
<span>Website 1 : y = 1.50x + 30 website 2 : y = 2x + 0 y = 4x - 4 y = -4x + 4 4x - 4 = -4x + 4 4x + 4x = 4 + 4 8x = 8 x = 1 y = 4x - 4 y = 4(1) - 4 y = 4 - 4 y = 0</span>
padilas [110]3 years ago
3 0
If we are to express the linear equation in slope-intercept form wherein the slope is the cost per download and y is the total cost. The answer should be,

Website 1: slope = 1.5 and y-intercept = 30

The equation that would represent the given is,

                  y = 1.5x + 30

Website 2: If we consider that there is no additional cost for this except for the cost per downloaded music then, the equation would be,

                y = 2x
You might be interested in
A data scientist studying a manufacturing process classifies each item produced by the process as either Poor, Acceptable, or Ex
Genrish500 [490]

Answer:

0.214 ; 0.064 ; 0.3859 ; 0.9966 ; 0.135

Step-by-step explanation:

Given the distribution :

Poor ___ Acceptable ____ Excellent

0.25 _____ 0.6 _________ 0.15

The data scientist receives three items produced by the manufacturing process.

Find the chance that:

a. all of items are Acceptable

0.6 * 0.6 * 0.6 = 0.6^3 = 0.214

b. none of the items is Acceptable

P(not acceptable) = 1 - p(acceptable) = 1 - 0.6 = 0.4

0.4 * 0.4 * 0.4 = 0.4^3 = 0.064

c. at least one of the items is Excellent

P(atleast one) = 1 - P(none)

P(not excellent) = 1 - 0.15 = 0.85

P(none is excellent) = 0.85^3 = 0.614125

Hence,

P(atleast one is excellent) = 1 - 0.614125 = 0.3859

d. not all of the items are Excellent

P(not all) = 1 - p(All)

P(all excellent) = 0.15^3 = 0.003375

P(not all are excellent) = 1 - 0.003375 = 0.9966

e. there is one item of each class:

P(poor) * p(acceptable) * p(excellent) * (number of classes)!

0.25 * 0.6 * 0.15 * 3!

= 0.135

3 0
3 years ago
-\frac{9x}{4}=27
IRISSAK [1]

\bf \cfrac{-9x}{4}=27\implies \stackrel{\textit{cross multiplying}}{-9x=4(27)}\implies x=\cfrac{4(27)}{-9}\implies x=4\cdot \cfrac{27}{-9} \\\\\\ x=4\cdot -3\implies x=-12

4 0
3 years ago
A basket contained 75 brown eggs. 40% of them were used-up, and a third of them remaining were rotten and thrown out. What fract
IceJOKER [234]

Answer:

4/15

Step-by-step explanation:

40% is the same as .4.

.4 x 75 = 30

1/3 x 75 = 25

30 + 25 = 55

75 - 55 = 20

20 / 75

Simplify. Divide by 5.

4/15

6 0
3 years ago
8/3 as a repeating decimal
lbvjy [14]
The answer is 2.66666666666666666666666667 because 8/3 is 2.6666666666666667 mark as brainiest if i helped
7 0
3 years ago
Patrick went cycling one weekend.
Margarita [4]
For this question, it would be most effective to use an algebraic expression to more easily show what the question is asking. If we use the variable "k" to show the distance in km that he cycled on Sunday, we know that the amount he cycled on Saturday equals k + 12, and the amount that he cycled on the weekend should be the amount of Saturday plus the amount of Sunday. If we write this as an equation we say:
k + k + 12 = 38
=> 2k + 12 = 38
Now we can just rearrange and solve for k:
=> 2k = 26
=> k = 26/2 = 13
Therefore Patrick cycled 13km on Sunday
To solve the answer, we just add 12km to the value for Sunday like so:
12 + 13 = the amount he cycled on Sunday
Hope this helped, remember to please try and understand the maths as well as the answer :))
8 0
3 years ago
Other questions:
  • Find the smallest positive integer that must be added to 2010 to obtain a perfect square
    13·1 answer
  • A line passes (-8,-2) and has a slope of 5/4. Write an equation in Ax + By=C
    8·2 answers
  • SbhxhdhdhdhdrjjddbcbfbdbbzxvCasszvsvdbhrhdbfnfbrhudhtbthrh help me
    13·1 answer
  • A family has traveled 114 miles of a planned trip. This is 37% of the total distance they must travel on the trip. Find, correct
    6·1 answer
  • Find the value of x.<br><br> x = [ ?1
    10·1 answer
  • The school band is comprised of middle school students and high school students, but it always has the same maximum capacity. La
    12·1 answer
  • Which point on the graph shows the price of 3 cups of soup? Use the formula y=x÷2 to find y when x is 3.
    10·2 answers
  • the sum of three numbers is 15. the second number is double the first. the third number is 5 less than the first. what are the t
    5·1 answer
  • Geometry will mark brainliest circles
    8·1 answer
  • Pls help me quick !! Just simple quick answers
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!