Number of months that Lance lived in Portugal: x
Number of months that Lance lived in Brazil: y
<span>Lance lived in Portugal and Brazil for a total of 14 months to learn Portuguese:
</span>(1) x+y=14
<span>He learned an average of 130 words per month when he lived in Portugal:
</span>Number of words that Lance learned in Portugal: 130x
<span>and an average of 150 new words per month when he lived in Brazil:
</span>Number of words that Lance learned in Brazil: 150y
<span>In total, he learned 1920 new words:
(2) 130x+150y=1920
</span><span>Write a system of equations to represent this situation:
(1) x+y=14
(2) 130x+150y=1920</span>
<h3>
Answer: Choice C</h3>
2 x 3 = 3 x 2
Explanation:
The commutative property of multiplication says we can multiply any two numbers in any order we want. The general rule is a x b = b x a, where x represents the multiplication symbol. The 'a' and 'b' can be any two numbers you want.
Choice C shows an example of this. Either side simplifies to 6.
Another example would be 4 x 5 = 5 x 4 where both sides become 20.
Answer:
Step-by-step explanation:
sry if im wrong
Answer:
yes
Step-by-step explanation:
you did it right
