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.

Question

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

Answer 1

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.

Answer 2

2x - 3 = 2x - 5.
Responses
A -2-2
B 00
C 53
5 3
D no solutionno solution
E infinitely many solutions