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
cricket20 [7]
3 years ago
15

Calculate the sum of the first 30 terms in the sequence that begins with 70,65,60

Mathematics
1 answer:
Afina-wow [57]3 years ago
4 0

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\la\la\la\la\ddddddddddddddddddddddddddddddddcleverdddddd\ffffffffffffffffffffffffffffffffffffffff\pppppppppppppppppppppppppppppppppppp\ddddddddddddddddddd \displaystyle \Large \boldsymbol{} a_1=70  \  ; \ d=-5  \\\\S_n=\frac{a_1+a_n}{2} \cdot n \ ; \ a_n=a_1+(n-1)d \Longrightarrow \\\\\\ S_{30}=\frac{70+70-29\cdot5}{2} \cdot 30 =-75 \\\\\\Answer: S_{30}=-75

You might be interested in
Please help I will give you 20 points
zheka24 [161]
You good ?????????????
7 0
3 years ago
37= -3+5(x + 6) slove for x
lions [1.4K]
Step 1: Simplify both sides of the equation.
37
=
−
3
+
5
(
x
+
6
)
37
=
−
3
+
(
5
)
(
x
)
+
(
5
)
(
6
)
(Distribute)
37
=
−
3
+
5
x
+
30
37
=
(
5
x
)
+
(
−
3
+
30
)
(Combine Like Terms)
37
=
5
x
+
27
37
=
5
x
+
27
Step 2: Flip the equation.
5
x
+
27
=
37
Step 3: Subtract 27 from both sides.
5
x
+
27
−
27
=
37
−
27
5
x
=
10
Step 4: Divide both sides by 5.
5
x
5
=
10
5
x
=
2
8 0
3 years ago
How do you divide 12.92 by 3.4
Aleks04 [339]
3.8 is the answer for that question


7 0
3 years ago
Read 2 more answers
Marley picked 18 bananas, which is 6 timies as many bananas as Julans picked. The equation 6x?=18 can be used to find the number
lubasha [3.4K]

Answer:

Julans had pick up 3 bananas

Step-by-step explanation:

You can divide or you can mulitpaly

like count by 3s six time

or 6 three times  

3 6 9 12 15 18

6 12 18

3 0
2 years ago
Read 2 more answers
Mr. Hoya brought 5 watermelons from his grocery store. The watermelons weighed 8.25 pounds, 9.25 pounds, 8.875 pounds, 9.625 pou
Ronch [10]
The first thing we must do for this case is to find the total weight of the watermelons.
 We have then:
 W = 8.25 + 9.25 + 8.875 + 9.625 + 10.75

 W = 46.75 pounds
 We now look for the amount of watermelons that people ate.
 We have then:
 (0.25) * (153) = 38.25 pounds

 Therefore, the amount of watermelon remaining is:
 46.75 - 38.25 = 8.5 pounds

 We note that the amount of watermelon remaining is equal to 8.5 pounds.
 Answer:
 
the amount of leftover watermelon is: equal to 8.5 pounds
7 0
3 years ago
Read 2 more answers
Other questions:
  • How much will you pay for 5 pounds of shrimp if the cost is 2 pounds for 10.99
    12·1 answer
  • What is -17 + (-12) + 43 -A = <br> if A is -16<br><br> (10 pts)
    7·2 answers
  • The moran family easts 3/8 of a pizza . what percent of the pizza have they eaten ? show work
    13·2 answers
  • What does the simple interest stand for? Interest = Principal x Rate x Time Interest = Per unit x Rate x Time Interest = Price x
    8·1 answer
  • Whats the best definition<br> of slope
    14·2 answers
  • The subject was greater than or less than
    12·1 answer
  • Find the missing values in the ratio table. Then write the equivalent ratios.
    10·1 answer
  • Please help me with this homework
    14·2 answers
  • Im not quite sure how to solve this.​
    11·2 answers
  • Find the surface area of the cone to the nearest square unit. Use π = 3.14.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!