We have that
<span>x - y = 4-------> multiply by -1-----> -x+y=-4-----> equation 1
x+ 2y = 4------> equation 2
add equation 1 and equation 2
-x+y=-4
x+2y=4
-----------------
0+3y=0-----> y=0
x+2y=4------> x+0=4------>x=4
the solution is the point (4,0)</span>
Answer:
25/30
Simplified: 5/6
Step-by-step explanation:
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Answer
Find out the how many sports trophies does Amy have .
To prove
Let us assume that the number of sports trophies Amy have be x.
As given
Amy has two rows of 4 sports trophies on each of her three shelves.
Than the equation becomes
x = 2 × 4 × 3
simply multiply the above terms
x = 24
Therefore there are 24 sports trophies Amy have .
2.20 is your answer
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Since it's literally cut in half, that means the triangle's area is literally half of the rectangle's area. Therefore, if we write it as
the triangle's area (a)=(1/2)*(b) (the rectangle's area) we can multiply 2 to both sides to get 2*a=b. Since a is (2x+10), we can plug it in and use the distributive property (since we just can't add up variables and integers) to get
2*(2x+10)=4x+20=b
