Answer:
70 pounds
Step-by-step explanation:
3 boxes= 105 pounds
2boxes= x pounds
Cross Multiply
3*x=105 *2
3x=210
3x/3=210/3
x=70 pounds
Answer:
y= 0.5x + 3
Step-by-step explanation:
Answer:

Step-by-step explanation:
To solve this problem, first you have to isolate it on one side of the equation. Remember to solve this problem, multiplication property of equality is multiply both sides of an equation the same number doesn't change the equation.
First, switch sides.

Next, multiply 14 from both sides.

Solve.

Therefore, the correct answer is z=84.
Answer:
57 years old
Step-by-step explanation:
- 400 - 3x = 229
- 3x = 171
- x = 57
- 400 - 171 = 229