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defon
2 years ago
13

a plumber uses 200 ft of tubing to make 50 sections of the same size. At this rate, how many feet of tubing is needed to make 1

section?
Mathematics
2 answers:
shutvik [7]2 years ago
5 0

Answer:

4 ft

Step-by-step explanation:

You need to divide that 200 ft among those 50 sections to get what amount of feet goes into each section.

xxTIMURxx [149]2 years ago
5 0
Yeah he’s right, the guy up there
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LenaWriter [7]

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4 0
3 years ago
A concert hall has 12 seats in the first row, 14 seats in the second row, 16 seats in the third row, and so on. If the pattern c
Marrrta [24]

Given:

The number of seats in the first row is <em>a</em>₁ = 12.

The series of the increasing number of seats is 12, 14, 16......

The objective is to find the total number of seats in the first 12 rows.

Explanation:

The difference between the number of seats in each row can be calculated by the difference between the successive terms of the series.

\begin{gathered} d=14-12=2 \\ d=16-14=2 \end{gathered}

The number of rows to be calculated is <em>n</em> = 12.

To find the number of seats:

The number of seats presents in the first 12 rows can be calculated as,

S_n=\frac{n}{2}\lbrack2a_1+(n-1)d\rbrack

On plugging the obtained values in the above equation,

\begin{gathered} S_{12}=\frac{12}{2}\lbrack2(12)+(12-1)2\rbrack \\ =6\lbrack24+11(2)\rbrack \\ =6(46) \\ =276 \end{gathered}

Hence, the total number of seats in the first 12 rows is 276.

8 0
10 months ago
I need the answer fast pls
ludmilkaskok [199]

A. C. D. E. F.

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2 years ago
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