If the measure of DEF is 76, what is the measure of DE? 20pts
2 answers:
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The simplified expression using the commutative property is : +
commutative property can be defined as a mathematics attribute that is possessed by a mathematical equation, that enables the objects undergoing addition or multiplication to change position.
In conclusion, The simplified expression using the commutative property is : +
4/3 + 3/4 + 2/3 = ( +
) +
=
+
Learn more about commutative property: brainly.com/question/1528288
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The number of questions in the test is 30
Step-by-step explanation:
Let's call the total number of questions in the test N.
We know that Laura answered 27 questions, and these 27 questions represent the 90% of the test.
Therefore, we can say that 27 is the 90% of N.
Re-writing the percentage as a fraction,
This means that:
And now we can solve for N to find the number of questions in the test:
Learn more about percentage:
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