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Rufina [12.5K]
3 years ago
6

To be able to do the problem 5(10+4) mentally, zach does 50+20 instead of 5(14). Zach is using which of the following properties

? associative, commutative, inverse, or distribute​
Mathematics
1 answer:
liberstina [14]3 years ago
6 0

Answer:

Zach is using the distributive property.

Step-by-step explanation:

He distributes the 5 to the numbers inside the ().

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A plumber had two pipes. The ratio of the length of the longer pipe to the shorter pipe was 9:2. When he cut 1.65m from the long
Natasha2012 [34]

Answer:

1.1m

Step-by-step explanation:

Let L denote longer pipe and S denote shorter part

given:

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Also given:

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By substitution, sub eq 1 into eq 2

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