Answer:
The solution set is (4, 3)
Step-by-step explanation:
To solve by substitution, start by solving the second equation for y.
2x - y = 5
-y = -2x + 5
y = 2x - 5
Now that we have this, put that expression in for y in the first equation and solve for x.
5x - 2(2x - 5) = 14
5x - 4x + 10 = 14
x + 10 = 14
x = 4
Now that we have the value of x, input it into either equation and solve for y.
2x - y = 5
2(4) - y = 5
8 - y = 5
-y = -3
y = 3
Answer:
C. 60
Step-by-step explanation:
9 is 3 times 3, so you have to multiply 20 by 3 as well
The scale factor I believe would be 4.2 (I haven’t done this in a while but scale factor would be how much it grows each time)
He is not impacted by all of the strange occurrences around him.
Answer: about 54 ft." .
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Explanation:
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A = L * w ;
A square is a rectangle that has all equation sides;
so; for a square. (L = w).
or, "A = s² " ; in which "s" in the length of any one side.
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Since "A = s² "
And "A = 182 ft² " ;
we need to solve for "s" ;
and then find the perimeter of the square with is: "4*s" .
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A = s² ; ↔ s² = A ; s² = 182 ft² ;
Take positive square root of each side of the equation; to isolate "s" on one side of the equation ; and to solve for "s" ;
√(s²) = √(182 ft²) ;
to get: s = √182 ft, = 53.9629502529281659 ft.
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The perimeter: 4* s = 4√(182 ft) = 4* (13.4907375632320415 ft.) ;
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= 53.9629502529281659 ft.
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round to 54 ft.
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