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blsea [12.9K]
3 years ago
8

PLEASE ANSWER QUICKLY

Mathematics
2 answers:
Hitman42 [59]3 years ago
8 0

The shorter piece is 3 ft long and the longer piece is 7 ft long.

hope I helped

can you choose mine as the brainliest answer

creativ13 [48]3 years ago
7 0
Let x denote the length of the longer  first piece and y the length of the shorter piece.

We have x+y=10 and x=3y-2 hence 3y-2+y=10 => 4y=12 => y=3 => x=7

The shorter piece is 3 feet long
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Dmitriy789 [7]

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From the data above:

a = 3, d = 3

\begin{gathered} T_{n\text{ }}=\text{ a + (n-1)d} \\ \text{where n = 20} \\ T_{20\text{ }}=\text{ a + (20-1)d} \\ T_{20\text{ }}\text{ = a + 19d} \\ T_{20\text{ }}\text{ = 3 + 19 }\times3 \\ T_{20\text{ }}\text{ = 3 + 57} \\ T_{20\text{ }}\text{ = 60} \end{gathered}

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From the data above:

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