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puteri [66]
3 years ago
6

Joe wants to saw a wooden plank into 3/4 -meter pieces. The length of the wooden plank is 15/4meters. How many 3/4 -meter pieces

can Joe saw from the wooden plank?
Mathematics
2 answers:
Alenkasestr [34]3 years ago
6 0
3 times 5 is 15 so 5 is your answer
oksano4ka [1.4K]3 years ago
6 0

Answer:

5 is your answer

Step-by-step explanation:

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If you have multiple equations with multiple variables, you can either do clever substitutions, or turn it into a matrix on which you can perform linear combinations or multiplications (Gauss elimination)

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(note how the above 3 rows represent the 3 equations, just got rid of the variables, plus sign and equals sign)

subtract row1 from row3, that eliminates x and z from row 3.

1  1   1  1
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divide row3 by -2, that will give y a factor of 1

1  1   1  1
2  1  -1  8
0 1   0  3

The last row now says y=3



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Step-by-step explanation:

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