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creativ13 [48]
3 years ago
8

Find the 81st term of the arithmetic sequence -10, -25, -40

Mathematics
2 answers:
nadezda [96]3 years ago
6 0

Answer:

-1210

Step-by-step explanation:

The nth term is -10-(15(n-1)) so

-10-(15(80)=

-10-1200=

-1210

Maurinko [17]3 years ago
5 0

Answer:

5 - (N x 15)

81 x 15 = 1215

5-1215=-1210

-1210 should be the 81st term

Step-by-step explanation:

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The perimeter of the scalene triangle is 54.6 cm.
olchik [2.2K]

Answer:

b = 45.9 - c

Step-by-step explanation:

A scalene triangle has non of its sides equal.

Perimeter = 54.6

side a = 8.7 cm

side b = unknown

side c = unknown

Perimeter of a shape is sum of all its sides.

Perimeter = a + b + c

54.6 = 8.7 + b + c

Making b the subject

b = 54.6 - 8.7 - c

b = 45.9 - c

The value of b is (45.9 - c)

7 0
3 years ago
athena is sculpting a miniature amphitheatre she uses 2/3 blocked of clay that originally weighted 3 1/4 pounds how many pounds
Olin [163]

Answer:

224

Step-by-step explanation:

6 0
2 years ago
Mr. Sanchez bought 2 magazine for 9.95 each and 1 book for 14.95 if the sales tax is 6% what is the total cost of Mr. Sanchez pu
Dima020 [189]
Rst you have to find the price of everything together

2 magazines for 9.95 each and a book for 14.95

9.95 + 9.95 + 14.95 = 34.85

Next you convert the percent to a decimal

6% = 0.06

Now you put a one in the ones place

1.06

Multiply this by the cost of everything

34.85 * 1.06 = 36.94

The answer is $36.94

Hope this helps!

Read more on Brainly.com - brainly.com/question/10235412#readmore
5 0
3 years ago
-x/11 - 13 = -1<br><br> ---<br> what does "x" equal
Vitek1552 [10]
-132 i think is the correct answer
4 0
3 years ago
Read 2 more answers
7. Hobbies Members of a reading group order books for $89.10 and bookmarks
qaws [65]

Answer:

(89.10+10.62)/18 =

(99.72)/18 =

= 5.54

Verification:

5.54*18 = 99.72

how much does each

person owe on average? $5.54

Step-by-step explanation:

4 0
2 years ago
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