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
Arturiano [62]
4 years ago
12

Question in attachment

Mathematics
1 answer:
saul85 [17]4 years ago
4 0

Answer:

Step-by-step explanation:

a₁₅ = 33.5  

S₁₅ = 240

So, there are 15 terms in this arithmetic progression. So, l = a₁₅ = 33.5

Sn = (n/2)(a+l)

S_{15}=\frac{15}{2}(a_{1}+l)\\\\240=\frac{15}{2}(a_{1}+33.5)\\\\240*2=15*(a_{1}+33.5)\\\\480=15*(a_{1}+33.5)\\\\\frac{480}{15}=a_{1}+33.5\\\\32=a_{1}+33.5\\\\32-33.5=a_{1}\\-1.5=a_{1}

a₁ = - 1.5

You might be interested in
Sophia owns a clothing store that sells graphic T-shirts. n is the number of
goldenfox [79]

Answer:

n = 150

Step-by-step explanation:

If n is the number of T-shirt sell each month, then the revenue function of Sophia's store is r = 21n .......... (1)

and the cost function of her store is C = 16n + 750 ........ (2)

Now, at break-even point, the revenue of a business is equal to its cost.

Therefore, r = C {From equations (1) and (2)}

⇒ 21n = 16n + 750

⇒ 5n = 750

⇒ n = 150

So, the break-even point of the store will occur when the number of T-shirt production is 150. (Answer)

8 0
3 years ago
Which two points are on the graph of y=x-4
Ann [662]

The answer is C because since the answer is 4 and if u look at c it would equal to 4.

8 0
4 years ago
Read 2 more answers
Find the value<br> 9 (2) 7<br> HELPPPP MEEEE I NEED THIS ASAP
ExtremeBDS [4]

Answer:

15/40 which is 3/8

Plug in the numbers into the variables then complete it which then gives you 3/8 simplified

7 0
3 years ago
A farmer has 13 cows. a bolt of lightning kills all but 5 of them. how many cows survived?
jeyben [28]
<span>Given that a farmer has 13 cows if a bolt of lightning kills all but 5 of them, this means that the bolt of lightning killed all the cows except 5.

Therefore, the number of cows that survived is 5 cows.
</span>
8 0
3 years ago
Write 3.01 (1 repeating) as a mixed fraction?
Advocard [28]

Answer:

3 1/100

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Pleaseeee help!!!!!!!!!!!!!
    8·1 answer
  • Find the absolute maximum and minimum of the function on the given domain. f (x comma y )equals 8 x squared plus 7 y squared on
    5·1 answer
  • With water from one hose, a swimming pool can be filled in 8 hours. A second, larger hose used alone can gill the pool in 6 hour
    15·1 answer
  • When we can replace infimum by minimum cea's lemma?
    14·1 answer
  • Tony wants to buy an Ipod for $59.99 with a discount of 15 %and a sales tax of 7.5%. What is the total price of the Ipod?
    5·1 answer
  • en una guardería ay una matricula de 50 lactantes de los cuales 20 son niñas cual es la razon de niñas a niños en dicha guarderi
    7·1 answer
  • У
    9·1 answer
  • If x = 2 and y = 5 , evaluate the following expression: 20 + 2 ( 3 y − 4 x )
    11·1 answer
  • 0.058<br> −<br> 0.225<br> +<br> 6.4<br> 0.08
    9·1 answer
  • Divide 196 by 4 = 49How many weeks are in 259 days ? =How many 5s are there in 295 ? =A man earns 192 in eight months. How much
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!