Case bought a 10-week-old pig that weighed 30 kg. At 18 weeks, the pig weighed 80 kg. The equation (18 − 10)x + 30 = 80 can be used to find the number of kg (x) the pig gained each week.
How many kilograms did the pig gain each week?
Responses
A 5.75 kg5.75 kg
B 6.25 kg6.25 kg
C 6.75 kg6.75 kg
D 7.25 kg
To find the number of kilograms the pig gained each week, we need to solve the equation.
(18 − 10)x + 30 = 80
First, calculate the difference in weeks: 18 - 10 = 8.
Then, divide both sides of the equation by 8: (80 - 30) / 8 = 50 / 8 = 6.25.
Therefore, the pig gained 6.25 kg each week.
The correct answer is B. 6.25 kg.
To find the number of kilograms the pig gained each week, we can solve the equation (18 - 10)x + 30 = 80 for x.
First, simplify the equation:
(18 - 10)x + 30 = 80
8x + 30 = 80
Next, subtract 30 from both sides:
8x = 50
Then, divide both sides by 8:
x = 50 / 8
x = 6.25 kg
Therefore, the pig gained 6.25 kg each week.
The correct answer is B) 6.25 kg.
To find the number of kilograms the pig gained each week, we can substitute the values into the equation (18 − 10)x + 30 = 80 and solve for x.
First, let's simplify the equation:
(18 - 10)x + 30 = 80
8x + 30 = 80
Next, let's isolate the variable by subtracting 30 from both sides of the equation:
8x = 80 - 30
8x = 50
Now, divide both sides of the equation by 8 to solve for x:
x = 50 / 8
x ≈ 6.25
Therefore, the pig gained approximately 6.25 kilograms each week.
The correct answer is B) 6.25 kg.
2x - 3 = 2x - 5.
Responses
A -2-2
B 00
C 53
5 3
D no solutionno solution
E infinitely many solutions