The cost of bench is 325.
Step-by-step explanation:
Given,
Combined cost of table and bench = 725
Let,
x be the cost of garden table
y be the cost of bench
According to given statement;
x+y=725 Eqn 1
x = y+75 Eqn 2
Putting value of x from Eqn 2 in Eqn 1
Dividing both sides by 2
The cost of bench is 325.
Keywords: linear equation, substitution method
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Answer:
1) Move the "non X" term to the right:
2x^2+16x-8=0 becomes
2x^2 +16x = +8
2) Divide the equation by the coefficient of X² which in this case is 2
x^2 + 8x = 4
3) Now here's the "completing the square" stage in which we:
• take the coefficient of X (which is 8)
• divide it by 2 [8 / 2 = 4]
• square that number [4^2 = 16]
• then add it to both sides of the equation.
x^2 + 8x + 16 = 20
Take the square root of both sides of the equation:
x + 4 = sq root (20)
x = sq root (20) -4
x1 = 4.472135955 -4
x1 = .472135955
x2 = -4.472135955 -4
x2 = -8.472135955
Source: https://www.1728.org/quadr2.htm
Step-by-step explanation:
Answer:5.5%
Step-by-step explanation:
just use it smh