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kolbaska11 [484]
3 years ago
7

Jorge is building a train set for his cousin. He has a piece of plywood that measures 49.5 inches in length, and he needs 2.25 i

nch pieces for the tracks. How many pieces can he cut from his piece of plywood?
Mathematics
1 answer:
Arada [10]3 years ago
3 0

Answer: 22 pieces

Step-by-step explanation:

You have to divide 49.5 ÷ 2.25

49.5÷2.25= 22

Jorge can cut 22 pieces of plywood for the tracks.

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Help finding the sum
Mamont248 [21]
It is asking you to find the sum of k^2 - 1 from k=1 to k=4. Since that is only 4 numbers, calculating the sum by hand wouldn’t be that bad.

(1^2 - 1) + (2^2 - 1) + (3^2 - 1) + (4^2 - 1) = 26

The easier way to find the sum is to use a few simple formulas.

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When we have a squared variable, the formula is k*n*(n+1)*(2n+1)/6.

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3 years ago
The price of a bracelet is $1.29. If the tax rate is 5%, find the total cost of<br> the bracelet
Salsk061 [2.6K]

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