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
kvv77 [185]
2 years ago
11

Grace loves to download new music. She originally had 47 songs but plans to purchase 3 new songs each week. She wants to know ho

w many songs she will have after 104 weeks. Which equation should she use?
(A) a104 = 104 + 3(47 - 1)
(B) a104 = 104 + 3(47 + 1)
(C) a104 = 47 + 3(104 - 1)
(D) a104 = 47 + 3(104 + 1)
Mathematics
2 answers:
Leokris [45]2 years ago
6 0

Answer:

Hence, the equation that represents the number of songs she will have after 104 weeks is:

a_{104}=47+(104-1)\times 3

Step-by-step explanation:

It is given that:

originally had 47 songs but plans to purchase 3 new songs each week. She wants to know how many songs she will have after 104 weeks.

Based on the data we see that:

Initial number of songs she has:

a_1=47

The number of songs she will have after second week is:

a_2=47+3=47+3\times (2-1)

After Third week:

a_3=47+3+3\\\\a_2=47+3\times (3-1)

and so on:

After 104 weeks she will have:

a_{104}=47+(104-1)\times 3

Hence, option: C is the correct answer.

( This could also be seen as it form an arithmetic progression with initial term as a=47 and common difference i.e. d=3

Hence, the nth term is given by:

a_n=a+(n-1)\times d

)

Elis [28]2 years ago
5 0

Answer:

(C) a_1_0_4 = 47 + 3(104 - 1)

You might be interested in
Evaluate 7j+5-8k when j=0.5 and k=0.25
dlinn [17]

So first you would substitute j and k in the expression.

7(0.5)+5-8(0.25)

3.5+5-2

It would equal 6.5

Hope this helps!

6 0
3 years ago
Read 2 more answers
Can someone answer me this question?
photoshop1234 [79]

Answer:

oki...whats the question?

Step-by-step explanation:

UwU

8 0
3 years ago
Read 2 more answers
Plzzzzz help i'm in desprate need of help with this
Ainat [17]

Answer:

Obtuse

Step-by-step explanation:

Right = has angle measure of 90°

Acute = has angle measure less than 90°

Equilateral = 2 or more angles whose angle measures are congruent to others

Circle = measures 360°

<u>Obtuse = Angle measure greater than 90° and less than 180°</u>

Hope this helps!

5 0
3 years ago
1100 students attend Ridgewood Junior High School. 4% of students bring their lunch to school everyday. How many students brough
Triss [41]

Answer:

the answer is 44 students.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The following set of coordinates represent which figure (1,1) (5,3) (7,7) (3,5)
igomit [66]

Answer:

It should be a rhombus :)

4 0
2 years ago
Other questions:
  • Which graph is defined by f(x) = |x2 − x − 2|?
    5·1 answer
  • There were 300 seats in the school gym. Of the all the seats 120 had stripes and the rest had polka dots on them. What percentag
    15·1 answer
  • If Brooklyn College students have an IQ of 100, on average, with a standard deviation of 16 points, and I collect 48 BC Psycholo
    6·1 answer
  • Help please: (n^4)^-3(n^4)^-1
    10·1 answer
  • Which graph best represents y=2^x + 1
    9·1 answer
  • Elijah drives 9 miles to his friends house in 1/6 hour. How fast does Elijah drive, in miles per hour? If he drives at this rate
    6·1 answer
  • Write an equation in point-slope form and slope-intercept form for each line.
    10·1 answer
  • Why do you think "imaginary" was considered derogatory?
    11·1 answer
  • Use the graph to describe what transformation has taken place. List your answer below.
    9·1 answer
  • For a standard normal distribution, find the approximate value of P (z greater-than-or-equal-to negative 1. 25). Use the portion
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!