Whats a good explanation for a bag contains 120 marbles. Some are red and the rest are black. There are 19 red marbles for every black marble. How many red marbles are in the bag?

114 marbles

Step-by-step explanation:

From the question, we are told that a bag contains red and black marbles which are 120 marbles in total. We are further told that there are 19 red marbles for every black marble.

Let the number of black marbles be represented by a.

The red marbles will be: = 19 × a = 19a

Based on the information given in the question,

Black marbles + Red marbles = 120

a + 19a = 120

20a = 120

a = 120/20

a = 6

Black marbles = 6

Red marbles = 19a = 19 × 6 = 114 marbles

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.