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Answer:
y = 56/3
Step-by-step explanation:
We need to write equations to solve
Let the two numbers be x and y
The sum is 56
x+y = 56
The first number is 2 times greater than the second number.
x = 2*y
Substitute this into the first equation
x+y = 56
2y+y=56
3y = 56
y = 56/3
6.804 kilograms = 15 Ib. I hope I'm right. I looked it up on google
Answer:
To round to three significant figures, look at the fourth significant figure. It's a 5 , so round up.
To round to four significant figures, look at the fifth significant figure. It's a 1 , so round down.
To round to two significant figures, look at the third significant figure. It's an 8 , so round up.