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Anettt [7]
3 years ago
6

HELP HELP I NEED HELP ASAP PLEASE!!

Mathematics
1 answer:
alexira [117]3 years ago
6 0

Answer:

try 87 or 86

Step-by-step explanation:

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the larger of two numbers is 1 less than 3 times the smaller number. if twice the smaller is increased by the larger number, the
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x = 3y - 1

2y + x = x + 18


2y + 3y - 1 = 3y - 1 + 18

5y - 1 = 3y + 17

2y = 18

y = 9


x = 3(9) - 1

x = 27 - 1

x = 26

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2 years ago
4.5, 9, 13.5, 18...
Sladkaya [172]

Answer:

a) Arithmetic

b) 22.5

c) 4.5

d) a_n = 4.5 + 4.5(n - 1)

e) a_15 = 67.5

Step-by-step explanation:

a) Subtract one term by the term right before it, and the difference will be the common difference.

9 - 4.5 = 4.5

13.5 - 9 = 4.5

18 - 13.5 = 4.5

Therefore, the common difference is 4.5.

b) Since the common difference is 4.5, add 4.5 to the 18 (which was the last value given). The result is 22.5.

c) We have already figured out that the common difference is 4.5.

d) The explicit formula would be a_n = a1 + d(n - 1). The first term is 4.5 and d is also 4.5, so the explicit formula is a_n = 4.5 + 4.5(n-1).

e) Plug 15 into our explicit formula for n. a_15 = 4.5 + 4.5(14). The result is 67.5.

5 0
2 years ago
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Please help me with this
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I think N? Because it’s took 100 kilo and The other it took less
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2 years ago
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Two numbers are in the ratio of 2 to 3. If the smaller number is 18, the larger number is___.
Tamiku [17]

Answer:

27

Step-by-step explanation:

2:3

18:?

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2 x 9 = 18

3 x 9 = 27

4 0
3 years ago
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