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
strojnjashka [21]
3 years ago
13

URGENT DUE BY 1:00 FOR MY FINAL GRADE PLEASE HELP OR I WILL FAIL SEMESTER WILL RATE GOOD THX BLESS YOU!!!!

Mathematics
2 answers:
PtichkaEL [24]3 years ago
5 0

Answer: $275

Step-by-step explanation:

Given : Andrew earns an allowance of $14 the first week, $17 the next week, $20 the following week, and so on.

We can see that each week there is his allowance is increasing by $3.

That means his allowance is increasing Arithmetically.

We know that for Arithmetic sequence , the sum of first n terms is given by :-

S_n=\dfrac{n}{2}(2a+(n-1)d)

, where a = First term

d= common difference

For the given situation, a = $14 and d=$3

Then, for n= 10 , we have

S_n=\dfrac{10}{2}(2(14)+(10-1)3)=(5)(55)=275

Hence, Andrew will earn $275 over the course of 10 weeks.

Lesechka [4]3 years ago
3 0
F(x) = 3x + 11
Is the function used to show this.

when you know this, you are able to do the following:
f(10) = 30 + 11 = $41
That would be the allowance of the 10th week.

The question, however wants the total.

This again, can be done like this:
f(1) + f(2) + f(3) + f(4) + f(5) + f(6) + f(7) + f(8) + f(9) + f(10) = $275 :)
14 + 17 + 20 + 23 + 26 + 29 + 32 + 35 + 38 + 41 = $275

Sure there is a better formula, but i couldnt seem to make it, sorry.

HUGE UPDATE: The sum is $275 not 200..


You might be interested in
Use Pythagorean Theorem to solve for D. Round your answer to the nearest tenth
Aneli [31]
The answer is B. 18.9
3 0
2 years ago
Read 2 more answers
= Knowledge Check Carmen gave $1.39 to one friend and $2.31 to another friend. Find the total amount Carmen gave to the two frie
Anna71 [15]

Answer:

3.71

Step-by-step explanation:

Add the money.....

8 0
2 years ago
The Mississippi River flows at a rate of 2 miles per hour. If Eduardo floats
madam [21]

Answer:

11 1/3 miles

Step-by-step explanation:

5 0
3 years ago
The width of a rectangle is fifteen feet less than its length. If the area of the rectangle is 54 square feet, find the width.
PolarNik [594]

Answer:

3 ft

Step-by-step explanation:

It is because 3 times 18 is 54 and 3 is 15 less than 18

4 0
3 years ago
You wish to make a triangular garden. One of the angles is 26°. The second angle is complementary to the first angle. What is th
rosijanka [135]
 Since the second angle + first angle is 90 degrees, the third angle must be 90 degrees to complete the 180 degrees in a circle.
Hope this helps!
8 0
3 years ago
Other questions:
  • What is the answer to this question?
    6·1 answer
  • Evaluate 23x-1 for x = 1.
    7·1 answer
  • Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used
    11·1 answer
  • Malpractice insurance is carried by doctors and lawyers to ______ them from lawsuits
    6·2 answers
  • A) -6/5<br><br> B) -2<br><br> C) -6<br><br> D) 2/3
    7·1 answer
  • I don’t understand this question what so ever
    15·1 answer
  • I need help! It's timed. Input - Output is the picture that is linked.
    12·1 answer
  • Rahmir bought 18 pieces of candy. he gave1/6 of the apples to each of his 5 friends.how many apples did each friend get?
    11·1 answer
  • Tracy has a cell phone plan that provides 250 free minutes each month for a
    12·1 answer
  • Suppose you deposit $2,000 in a savings account that pays interest at an annual rate of 6%. If no money is added or withdrawn fr
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!