Solve the following equation for x: 5x + 3y = 15.
2 answers:
Answer:
The correct option is B) x = negative three fifths y + 3
Step-by-step explanation:
Consider the provided equation.
5x + 3y = 15
We need to solve the above equation for x.
Subtract both the side by 3y.
To find the value of y, isolate the variable y:
Divide both the sides by 5.
Hence, the correct option is B) x = negative three fifths y + 3
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Given:
Length of rectangle = (x+10) cm
Width of the rectangle = x cm
Perimeter = 32 cm
To find:
The length of the rectangle.
Solution:
We know that,
Where, l is length and w is width.
Substituting the values, we get
Subtract 20 from both sides.
Divide both sides by
So, the length is
Therefore, the length of the rectangle is 13 cm.