Una cartera contiene $5.15 en pesetas y monedas de diez. Hay 15 pesetas más que monedas de diez. Halla el número de pesetas y monedas
de diez.
monedas
pesetas Hecho

Three times the sum of a number and seven is negative thirty-six. what is the number?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?