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
Vesna [10]
3 years ago
8

Which expressions is equivalent to 17s - 10 + 3 (2s+1)?

Mathematics
1 answer:
frutty [35]3 years ago
8 0

That answer is 23s-7

Hope that helps

You might be interested in
QUESTION
Lorico [155]
1. For this item we just refer to the prompt to know the conjectures of Ernest and Denise. According to Ernest, they should swim 1 kilometer on the first week then add 0.25km every week while Denise believes that they should swim 1 kilometer on the first week then add 0.5km every week.

2. Yes, these distances make an arithmetic sequence. It's because an arithmetic sequence is defined as a group of increasing or decreasing numbers where the difference between any two consecutive numbers is constant. This just means that every number has the same interval. In the case of their schedule, this is true.

3. For this item we just follow the descriptions of Ernest's and Denise's schedule in item number 1. For Ernest, we just keep adding 0.25 from 1 kilometer until we added it thrice. For Denise, we also keep adding a number thrice but this time it's 0.5 instead of 0.25.

Ernest's Schedule: 1, 1.25, 1.5, 1.75
Denise's Schedule: 1, 1.5, 2, 2.5

4. Here we are asked to determine a formula that will describe the schedules of Ernest and Denise. In the given formula a_{n}= a_{n-1}+d, a_{n} refers to the next term in the sequence, a_{n-1} refers to the previous term, while d refers to the common difference. In the recursive formula all we need is to insert the value of d to the equations.

Ernest: a_{n}= a_{n-1}+0.25
Denise: a_{n}= a_{n-1}+0.5

5. For this item we basically do the same thing but this time we are given another formula. Our formula is in the form a_{n}= a_{1}+(n-1)d where a_{n} is still the nth term of the sequence, a_{1} is the very first time, n is the number of terms, and d is the common difference. 

Ernest: a_{n}= 1.0+0.25(n-1)
Denise: a_{n}= 1.0+0.5(n-1)

6. In this item we will just basically substitute numbers to one of the equations that we've set up in item #5. For this we need Ernest's explicit formula first. To know how far they will be swimming on week 10, the number of elements (n) must be 10.

a_{10}= 1.0+0.25(10-1)
a_{10}= 1.0+0.25(9)
a_{10}= 1.0+2.25
a_{10}= 3.25

7. Here, we just do the same thing as item #6 but this time we will consider Denise's explicit formula. Since we are also asked how far the students will be swimming on week 10, the number of elements would also be 10 and this would also be our value for n.

a_{10}= 1.0+0.5(10-1)
a_{10}= 1.0+0.5(9)
a_{10}= 1.0+4.5
a_{10}= 5.5

8. The answer for this question is obvious. You would just need to look at the 10th element in Ernest's and Denise's sequences and tell whose schedule had more than or equal to 5 as an answer. Following Ernest's schedule, you will just get 3.5 kilometers on the 10th week so it's definitely a no. Denise's schedule, on the other hand, would get you to 5.5 kilometers on week 10 so her training schedule should be followed.
7 0
3 years ago
Can someone please help
Sloan [31]

Answer:

41

Step-by-step explanation:

an = a1 + (n-1)d

a_n = the nᵗʰ term in the sequence = 10

a_1 = the first term in the sequence = 5

d = the common difference between terms = 4

a10 = 5 + (10-1)4

a10 = 5 + (9)4

a10 = 5 + 36

a10 = 41

7 0
2 years ago
Item 3 Question 1 A teacher spends $354 on costumes and microphones for six cast members in a play. Each cast member receives a
vovikov84 [41]

The microphone was $126.

You would multiply $38 by 6 which equals $228.

Then do $354-$228 which equals $126.

5 0
3 years ago
A certain flight arrives on time 80 percent of the time. Suppose 132 flights are randomly selected. Use the normal approximation
kondaur [170]
D because 118 and 120 is even numbers
3 0
3 years ago
What is equivalent to 2/5
LuckyWell [14K]
There are many answers. I’ll give you three examples...

4/10
6/15
8/20

There is a pattern too, just a trick!
7 0
3 years ago
Read 2 more answers
Other questions:
  • Juan always saves the same amount from his weekly allowance. The table shows how much he has saved at different times.
    15·2 answers
  • What is a speculator? 5 POINTS PLEASE HELP!
    8·2 answers
  • Q#4:
    15·1 answer
  • HELP ME PLEASE I NEED THE ANSWER NOW
    9·1 answer
  • In a class of 100 students, 20 students have hard copy and 80 students have electronic textbooks for the course. If you randomly
    7·1 answer
  • Kevin, Michael and Darren all do their own laundry at home. Kevin does his laundry every 9 days, Michael every 10 days, and Darr
    9·2 answers
  • Sara is 5 ft 10 in tall. To the nearest centimeter how tall is Sara? If 1 inch equals 2.54 centimeters
    10·2 answers
  • HELP PLEASE WHICH ONE IS CORRECT?
    9·1 answer
  • Drag each figure to show if it is similar to the figure shown or why it is not similar.
    11·1 answer
  • A . y+2 = x<br> B. y+1 = x <br> C. y-1 = x<br> D. y-2 = x<br><br> what answer?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!