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Shalnov [3]
3 years ago
7

Write an equation to represent the N'th term of the sequence (2,-1.-4,-7,...)

Mathematics
1 answer:
mr_godi [17]3 years ago
7 0

Answer: a(n) = 5 - 3n

the sequence has:

a1 = 2

a2 = -1

a3 = -7

.........

we can see that: a2 - a1 = a3 - a2 = -3

=> the sequence is a  arithmetic sequence

=> the distance between the numbers is d = -3

because this sequence is a  arithmetic sequence

=> a(n) = a1 + (n - 1)d = 2 + (n - 1).(-3) = 5 - 3n

Step-by-step explanation:

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Each alice is 1/10 of an orange if he brings 12 whole oranges how many sloces are there ?
aev [14]

Answer:

there are 120 slices of orange.

Step-by-step explanation:

The reason for this is because if theres 10 slices per orange, and there is 12 oranges, you multiply 10x12 and you get 120 slices.

3 0
3 years ago
kai pixked 11 times as many blueberries as nico. . together they picked 936. hiw many blueberries did each boy pick?
Masja [62]
N = how many blueberries Nico picked
11n = how many blueberries Kai picked

11n + n = 936
12n = 936
n = 78

11 (78) = 858 blueberries

Nico picked 78 and Kai picked 858
4 0
3 years ago
A club has 86 members, and there are 14 more girls than boys. how many boys and how many girls are members of the club?
Rus_ich [418]
X = boy count
x + 14 = girl count

x +x +14 = 86
2x + 14 = 86
2x = 72
x = 36
x + 14 = 50

There are 36 boys and 50 girls. Hope this helps!
6 0
3 years ago
A model village is built to scale. It has a scale of 1 : 23. A road has a real-life length of 1.61 km. What is the length of the
Bess [88]

Answer:

We need to find how much more or less the ratio becomes

1.61 / 23 = 0.07

we multiply 0.07 with 1 to make the ratio even and get your answer

1 x 0.07 = 0.07 on the map

Hope this helps

Step-by-step explanation:

6 0
4 years ago
a man has a garden measuring 84 metre by 56 he want to divide them equally into the minimum number of square plot what is the le
maw [93]

Answer:

6

Step-by-step explanation:

84 = 3 x 28

56 = 2 x 28

Minimum number of square plot, each square is 28 x 28

the number is 3 x 2 = 6

8 0
2 years ago
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