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Alex
3 years ago
14

PLEASE HELP ME! I REALLY NEED HELP!

Mathematics
2 answers:
Wewaii [24]3 years ago
8 0

Answer:

\bold{161}

Step-by-step explanation:

We know that n here is represented by 55 (nth term = 55th term), so we get the 55th term is

                                             -1 + 3(55 - 1)

                                             = -1 + 3(54)

                                             = -1 + 162

                                             = 161

Which is our answer.

Nuetrik [128]3 years ago
3 0

This formula means that a(n) for n, when n is the term number, will give you the term. Meaning, we just have to plug in 55 for n.

a(55) = -1 + 3(55 - 1)

a(55) = -1 + 3 * 54

a(55) = -1 + 162

a(55) = 161

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(will give brainliest!!)
Alex73 [517]
Hey there!

To figure out what "x" means, you can divide the numbers 126 and 14  . . .

126 divided by 14 = 9

9 x 14 = 126

9 = x

----------------
x = 9
----------------

Hope this helps you.
Have a great day!
4 0
3 years ago
Read 2 more answers
Express the ratio as a fraction in simplest form:<br> 18 ounces to 3 cups
IrinaVladis [17]

Answer:

6 : 1

Step-by-step explanation:

divide by 3 on both sides

18 ÷ 3 = 6

3 ÷ 3 = 1

6:1

8 0
3 years ago
Read 2 more answers
In a cafeteria, 1/6 of the students are eating salads, and 2/3 are eating sandwiches. There are 18 students in the cafeteria. Ho
inna [77]

Answer:

3 students are eating lunches other than salads and sandwiches.

Step-by-step explanation:

To solve this you know that there are 18 students in the cafeteria and 1/6 of them are eating salads and 2/3 are eating sandwiches right? So you would have to think about what 1/6 of 18 is so you know how many students are eating salads, and 1/6 of 18 is 3 so there are 3 students eating salads. Now, you have to find out how many students are eating sandwiches, so you need to know what 2/3 of 18 is. 2/3 of 18 is 12 so now you also know that there are 12 students eating sandwiches. Next, you have to add 12 and 3 and you get 15. Since you know that there are 18 students in the cafeteria, you have to subtract 18 by 15, and you should get 3. So 3 students are eating lunches other than salads or sandwiches.

Hope this helps you! :D

7 0
3 years ago
Robert believes that the lengths 8 in, 13 in, and 20 in will form a triangle. Is he correct?
adell [148]

Answer: I think it’s D

Step-by-step explanation:

it’s because 8^2 + 13^2 equals 233 and when square rooted equals 15.26 not 20 so no.

7 0
2 years ago
Ugh need help with this
almond37 [142]
-9x - 2
-9 (7) - 2
-63 - 2
-65
7 0
2 years ago
Read 2 more answers
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