Problem 1 : there are two numbers written on the board, which sum up to 27. the first number is 60% of the sum. what is the second number?

10.8

Step-by-step explanation:

Given that there are two numbers whose sum is equal to 27, you can set up an equation:

x + y = 27, where 'x' is the first number and 'y' is the second number

'The first number is 60% of the sum.'  Set up another equation for the first number:

x = 27(0.6) or x = 16.2  

Since x = 16.2, plug this number into the first equation and solve for 'y':

16.2 + y = 27

y = 10.8

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation:

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