If Diego has two times as many times as nickels and they have a combined value of 200 cents how many of each coin does he have

Let the number of dimes be x

therefore the number of nickels would be 3x

summing their value 10x + 5*3x = 200

therefore 25x = 200

therefore x = 200/25 = 8

there are 8 dimes and 24 nickles

checking; 8*10 + 24*5 = 80 + 120 = 200 (proven)

The distance from point a to point c across the coordinate plane is aproxamatly 8.94 rounded to the nearest hundredth. you use a^2 + b^2 =c^2