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soldi70 [24.7K]
3 years ago
7

To find 19 + (11+37), Lennie added 19 and 11. Then he added 37 to the sum. What property did he use ?

Mathematics
2 answers:
Nutka1998 [239]3 years ago
7 0

Lennie used the associative property.

The associative property basically shows that in any order the parenthesis are grouped, you will get the same number.

For example: 19+(11+37)= (19+11)+37=67

Ad libitum [116K]3 years ago
3 0

19 + (11+37) = (19 + 11) + 37

Associative property of addition

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Read 2 more answers
Question 3 of 8. Step 1 of 1
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308 gallons of 7% and 77 gallons of 2% are needed to obtain the desired 385 gallons.

<h3><u>Combination</u></h3>

Since a dairy needs 385 gallons of milk containing 6% butterfat, to determine how many gallons each of milk containing 7% butterfat and milk containing 2% butterfat must be used to obtain the desired 385 gallons, the following calculation must be performed:

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