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>
Answer:
x² +4x
Step-by-step explanation:
Area of triangle= ½ ×base ×height
Given: base= 2x, height= x +4
Area of triangle
= ½(2x)(x +4)
= x(x +4)
= x(x) +x(4) <em>(</em><em>expand)</em>
= x² +4x
The percent of the jerseys :
6 : 800 = 0,75%
Answer:
Rational
Step-by-step explanation:
Answer:
10 pair of soccer shorts.
Step-by-step explanation:
Let the unknown be x.
Translating the word problem into an algebraic equation, we have;
2/5 yard = 1 pair of short
4 yard = x pair of short
Cross-multiplying, we have;
2x/5 = 4
Multiplying both sides by 5, we have;
2x = 20
x = 20/2
x = 10 pair of soccer shorts.
