Mrs. Sanders has 80 coins some were 1 dollar coins and the rest were 50 cents coins. The total amount was $50, how much 1 dollar and 50 cent coins did she have?

Mrs. Sanders has 20, 1 dollar coins and 60, 50 cent coins.

Step-by-step explanation:

We are given the following in the question:

Let x be the 1 dollar coins and y be the number of 50 cents coins.

Total number of coins = 80

Thus, we can write the equation:

Total amount =  $50

Thus, we can write the equation:

Solving the two equations by elimination, we get,

Thus, Mrs. Sanders has 20, 1 dollar coins and 60,  50 cent coins.

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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